International Day for Disaster Reduction at the World Bank
Disaster Risk Management in the Information Age
A joint training workshop by GICT, GFDRR, infoDev and LCSUW to mark the International Day for Disaster Reduction
This document discusses different types of broadcasting systems. It describes digital video broadcasting (DVB) standards for digital satellite, cable and terrestrial broadcasting in Europe. It also discusses analogue FM broadcasting as the main form of audio broadcasting despite digital alternatives. AM radio broadcasting is described as one of the most basic types of radio broadcasting that detects amplitude changes in radio waves. Teletext is defined as a one-way system for broadcasting text and graphics through TV to be displayed, with a delay of 5-30 seconds to receive requested pages.
Billions of people are watching valuable TV content and advertising on a daily basis.
Different distribution networks transport this content from the content owner to the
consumer. The consumer has the choice to receive a full set of TV channels from many
service providers, be it telco, cable, terrestrial or DTH operators.
This document discusses various broadcasting and video systems. It covers AM broadcasting which uses frequency bands and carrier spacing to avoid signal overlap. It also discusses FM broadcasting which uses frequency division multiplexing to transmit stereo sound. The document also covers black and white television which uses raster scanning to transmit video as a serial data stream, and color television techniques like PAL and NTSC which encode color images and multiplex color signals for transmission.
Digital Audio Broadcasting (DAB) is a radio broadcast technology widely used in Europe and asian regions. Despite the popularity, there is no open-source tool that allows the transmission of arbitrary data over DAB.
Most of the currently existing professional Software Defined Radio (SDR) transceivers are capable to encode and pack raw DAB data in hardware like Field Programmable Gate Arrays (FPGAs).
Affordable DAB receivers that do not support hardware decoding produce just complex Orthogonal Frequency-Division Multiplexing (OFDM) samples. There exists therefore a large gap for third party applications that want to use DAB to transmit and receive arbitrary data.
The aim of this thesis is to find ways in which third party applications can easily use DAB to communicate. Apart from a review of possible solutions, we provide an open-source tool set that can be used for this purpose. It was especially challenging to obtain the performance necessary for this application.
The document discusses satellite transmission technologies for TV broadcasting. It provides an overview of SES, the world's largest satellite operator, including their global fleet of 44 satellites. It then discusses trends in the video transmission over satellite market, including growth drivers like increasing channels and adoption of HD and new formats. New technologies that can improve satellite transmission are also summarized, such as new frequency bands, increased symbol rates, and interference suppression techniques.
This document discusses a scheme for event triggered cellular yield enhancement in third generation mobile networks. It describes techniques like admission control, transport channel switching, and radio access bearer downsizing that can be used for efficient radio resource management in UMTS networks. It also outlines the key components of an event based cellular yield maximization system, including measuring cellular load, selecting cells for the scheme, processing measurements, communicating offers to users, and storing transaction details for charging. The scheme aims to open new avenues for revenue generation by enhancing network utilization levels in specific cells based on factors like utilization levels, location, and time of day.
Cognitive Radio: A Broadcaster’s Perspective (RTE) [Johnny Evans]Keith
Johnny Evans, Head of Frequency Planning in RTÉ Transmission Network Limited presents a brief overview of what cognitive radio means to a national broadcaster as a 'new neighbour' in the UHF bands
Vehicle Tracking and Remote Data Acquisition System using Very High Frequency...IJERD Editor
This document discusses a vehicle tracking and data acquisition system that uses amateur ("ham") radio operating on Very High Frequency (VHF) bands. The system tracks vehicle location using GPS and transmits the data via VHF radio to a workstation since GSM networks have poor or no coverage in remote areas. The workstation receives the VHF signals, stores the location data, and displays the vehicle's position on a map. Using amateur radio on VHF bands allows the system to provide tracking and communication capabilities where conventional GSM-based systems cannot function.
This document discusses different types of broadcasting systems. It describes digital video broadcasting (DVB) standards for digital satellite, cable and terrestrial broadcasting in Europe. It also discusses analogue FM broadcasting as the main form of audio broadcasting despite digital alternatives. AM radio broadcasting is described as one of the most basic types of radio broadcasting that detects amplitude changes in radio waves. Teletext is defined as a one-way system for broadcasting text and graphics through TV to be displayed, with a delay of 5-30 seconds to receive requested pages.
Billions of people are watching valuable TV content and advertising on a daily basis.
Different distribution networks transport this content from the content owner to the
consumer. The consumer has the choice to receive a full set of TV channels from many
service providers, be it telco, cable, terrestrial or DTH operators.
This document discusses various broadcasting and video systems. It covers AM broadcasting which uses frequency bands and carrier spacing to avoid signal overlap. It also discusses FM broadcasting which uses frequency division multiplexing to transmit stereo sound. The document also covers black and white television which uses raster scanning to transmit video as a serial data stream, and color television techniques like PAL and NTSC which encode color images and multiplex color signals for transmission.
Digital Audio Broadcasting (DAB) is a radio broadcast technology widely used in Europe and asian regions. Despite the popularity, there is no open-source tool that allows the transmission of arbitrary data over DAB.
Most of the currently existing professional Software Defined Radio (SDR) transceivers are capable to encode and pack raw DAB data in hardware like Field Programmable Gate Arrays (FPGAs).
Affordable DAB receivers that do not support hardware decoding produce just complex Orthogonal Frequency-Division Multiplexing (OFDM) samples. There exists therefore a large gap for third party applications that want to use DAB to transmit and receive arbitrary data.
The aim of this thesis is to find ways in which third party applications can easily use DAB to communicate. Apart from a review of possible solutions, we provide an open-source tool set that can be used for this purpose. It was especially challenging to obtain the performance necessary for this application.
The document discusses satellite transmission technologies for TV broadcasting. It provides an overview of SES, the world's largest satellite operator, including their global fleet of 44 satellites. It then discusses trends in the video transmission over satellite market, including growth drivers like increasing channels and adoption of HD and new formats. New technologies that can improve satellite transmission are also summarized, such as new frequency bands, increased symbol rates, and interference suppression techniques.
This document discusses a scheme for event triggered cellular yield enhancement in third generation mobile networks. It describes techniques like admission control, transport channel switching, and radio access bearer downsizing that can be used for efficient radio resource management in UMTS networks. It also outlines the key components of an event based cellular yield maximization system, including measuring cellular load, selecting cells for the scheme, processing measurements, communicating offers to users, and storing transaction details for charging. The scheme aims to open new avenues for revenue generation by enhancing network utilization levels in specific cells based on factors like utilization levels, location, and time of day.
Cognitive Radio: A Broadcaster’s Perspective (RTE) [Johnny Evans]Keith
Johnny Evans, Head of Frequency Planning in RTÉ Transmission Network Limited presents a brief overview of what cognitive radio means to a national broadcaster as a 'new neighbour' in the UHF bands
Vehicle Tracking and Remote Data Acquisition System using Very High Frequency...IJERD Editor
This document discusses a vehicle tracking and data acquisition system that uses amateur ("ham") radio operating on Very High Frequency (VHF) bands. The system tracks vehicle location using GPS and transmits the data via VHF radio to a workstation since GSM networks have poor or no coverage in remote areas. The workstation receives the VHF signals, stores the location data, and displays the vehicle's position on a map. Using amateur radio on VHF bands allows the system to provide tracking and communication capabilities where conventional GSM-based systems cannot function.
Col. Dr. Natee Sukonrat Chairman of Broadcasting Commission NBTC, Thailand.
Presented at the WorldDAB DAB+ Workshop ahead of Radio Asia 2017 in Bangkok.
Jens Stockmann from GatesAir looks at the DAB+ transmission system and compares the costs with other broadcast technologies.
Presented in Kiev in March 2016
Unit 1 introduction to software defined radiosJAIGANESH SEKAR
The document discusses the introduction to software defined radios. It begins with defining software and radio individually, then explains how combining the two enables radios that are more flexible and cost-effective than traditional hardware radios. The ideal software defined radio architecture involves converting signals to the digital domain before performing all signal processing in software. This allows for easier upgrades and reconfiguration but poses technical challenges to implement. Potential benefits of software defined radios include greater flexibility, easier software reuse and testing, and lower costs for manufacturers, service providers and users.
Radio broadcasting involves the one-way transmission of audio over radio waves to reach a wide audience. The document discusses the key components of radio broadcasting including categories of broadcasters (MW, FM, SW), studios, transmitters, antennas and the need for acoustic treatment of studios. It provides details on All India Radio's network in India and compares AM and FM broadcasting methods.
Slides from Joan Warner, CEO of Commercial Radio Australia and WorldDAB Asia Pacific Chair, at Broadcast Asia 2016.
Joan looks at how to deliver Digital Radio on smartphones and the potential for hybrid radio applications, combining the best of DAB and IP.
During 2015, Ofcom UK licensed and co-ordinated a trial of small scale DAB . The report concludes that the trials were generally highly successful and achieved their three objectives.
The document summarizes South Africa's joint SADIBA/NAB DAB+ digital radio trial. It provides details on the trial such as its technical parameters, current status, findings from verification reports, and next steps. The trial aims to test DAB+ technology and demonstrate its advantages over analog radio through multiple phases, with the goal of helping develop policy and regulations for a commercial launch of digital radio in South Africa.
The document discusses digital terrestrial broadcasting (DTH) and direct broadcast satellite (DBS) services in Africa. It describes how DBS uses Ku-band frequencies which allow for smaller receiving dishes and portability. DBS systems offer many channels and clear signals and can serve remote areas. Issues discussed include set-top boxes, encryption, and concerns about sovereignty but benefits are easy access and high bandwidth. DBS offers an alternative or complement to wired/wireless systems and can help realize a global village if cultural issues are addressed.
DVB-S2 is the second-generation specification for satellite broadcasting developed by DVB in 2003. It uses more advanced channel coding (LDPC codes) and modulation formats (QPSK, 8PSK, 16APSK, 32APSK) for improved transmission performance, achieving up to a 30% increase in capacity over DVB-S. DVB-S2 allows for backwards compatibility with DVB-S receivers and uses adaptive coding and modulation to optimize transmission for different users and conditions. It provides high flexibility to work with different input streams, modulation schemes, and satellite transponder characteristics.
International Journal of Engineering Research and Applications (IJERA) is an open access online peer reviewed international journal that publishes research and review articles in the fields of Computer Science, Neural Networks, Electrical Engineering, Software Engineering, Information Technology, Mechanical Engineering, Chemical Engineering, Plastic Engineering, Food Technology, Textile Engineering, Nano Technology & science, Power Electronics, Electronics & Communication Engineering, Computational mathematics, Image processing, Civil Engineering, Structural Engineering, Environmental Engineering, VLSI Testing & Low Power VLSI Design etc.
DTH technology enables direct transmission of TV signals to homes through a satellite receiver installed in the house. In India, DTH services involve broadcasting encrypted multi-channel signals via satellites that subscribers can receive using a dish antenna and set-top box provided by the broadcasting company. Key components of DTH services include broadcasting centers that transmit signals to satellites, satellites that receive and rebroadcast the signals, and receivers and decoders in homes that unscramble the signals for viewing on TVs. DTH provides benefits like nationwide coverage, a large number of channel options, and eliminating intermediaries like cable operators.
My presentation at the workshop on Federated Satellite Systems, held at Skolkovo University (Skoltech) on October 14th 2014. Its title: "Software Defined Radio: an Enabling Technology for Interoperability in Federated Satellite Systems".
he ST Engineering iDirect Velocity™ product line is a shared,
two-way Time Division Multiple Access (TDMA) system built to
dynamically allocate bandwidth from a shared pool based on realtime
usage requirements. For commercial airlines, this means the
ability to deliver high throughput, bandwidth-efficient in-flight
connectivity by sharing a pool of bandwidth across a fleet or air-craft,
taking advantage of different flight patterns and time zones.
How can we encourage more private broadcasters to embrace DAB?WorldDAB
At the EBU’s Digital Radio Summit in February, this was the question Patrick Hannon posed to the audience – “how do we get more private broadcasters to embrace the benefits and opportunities of DAB?”
The first thing to recognise is that many commercial broadcasters have already embraced digital radio - launching new services, building brands and reaching audiences that simply would not have been possible on capacity-constrained FM.
But it’s also true that some remain sceptical, believing that DAB is a platform with limited prospects (and IP holds the answers for radio’s long term future), or worrying about the perceived threat of new competition or the increased costs of dual transmission.
The document discusses next generation wireless networks (xG networks) and cognitive radios. It describes how xG networks will provide high bandwidth via heterogeneous architectures and dynamic spectrum access techniques enabled by cognitive radios. Cognitive radios allow opportunistic use of spectrum by performing spectrum sensing to detect available channels, spectrum management to select the best channel, spectrum sharing to coordinate channel access, and spectrum mobility to vacate channels for licensed users. The document outlines the key functions, architectures, and challenges of cognitive radio and xG networks.
DTH (direct-to-home) television involves receiving satellite programs directly into homes via a personal dish. It was first proposed in India in 1996 but did not pass approval due to security and cultural concerns. The government eventually approved DTH in 2000 but required signals to be transmitted through Indian satellites. DTH now makes up less than 5% of the Indian pay TV market but is forecasted to grow at a 29% compound annual rate through 2012, reaching around 7.7 million subscribers. Key components of DTH systems include set top boxes that comply with MPEG standards to process satellite signals and display content on televisions.
This document provides an overview of the syllabus for the Cognitive Radios course offered by RMK College of Engineering and Technology. It discusses key topics that will be covered including SDR architecture, channel coding and decoding, RF access, IF processing, channel sets, multiple personalities, evolution support, joint control, and top level component interfaces. Standard interfaces in SDR systems are also described such as analog stream, source bit stream, clear bit streams, protected bit stream, IF waveform, RF waveform, and network interface.
The document discusses LARCAN's DVB-T/H solution. It provides an overview of DVB-H as an extension of DVB-T to enable digital video broadcast services on mobile devices. It also describes how to set up DVB-T/H networks, including planning, transmitters, distribution networks, and synchronization for single frequency networks. Testing and optimization procedures are outlined as well as network monitoring and quality control. LARCAN is positioned as a leader in digital transmitter solutions that can provide a complete DVB-H portfolio.
This document summarizes SAFE Inc.'s district wide paging and crisis notification system. The system allows a central office to notify all schools in a district of emergencies simultaneously through public address systems. It uses software to organize schools into groups and schedule alerts. The system integrates with third-party mass notification systems to also send emails and texts. It enables remote activation of school responses from the central office if local controls are unavailable.
Radio Interoperability Presentation Generic Gsa AcademyRandyHagar
The document discusses various levels of radio interoperability between public safety agencies and provides examples. It describes 6 levels from simple methods like swapping radios to more advanced systems that use standards-based shared networks. It also discusses current challenges to interoperability and efforts to improve coordination through funding programs and initiatives.
Col. Dr. Natee Sukonrat Chairman of Broadcasting Commission NBTC, Thailand.
Presented at the WorldDAB DAB+ Workshop ahead of Radio Asia 2017 in Bangkok.
Jens Stockmann from GatesAir looks at the DAB+ transmission system and compares the costs with other broadcast technologies.
Presented in Kiev in March 2016
Unit 1 introduction to software defined radiosJAIGANESH SEKAR
The document discusses the introduction to software defined radios. It begins with defining software and radio individually, then explains how combining the two enables radios that are more flexible and cost-effective than traditional hardware radios. The ideal software defined radio architecture involves converting signals to the digital domain before performing all signal processing in software. This allows for easier upgrades and reconfiguration but poses technical challenges to implement. Potential benefits of software defined radios include greater flexibility, easier software reuse and testing, and lower costs for manufacturers, service providers and users.
Radio broadcasting involves the one-way transmission of audio over radio waves to reach a wide audience. The document discusses the key components of radio broadcasting including categories of broadcasters (MW, FM, SW), studios, transmitters, antennas and the need for acoustic treatment of studios. It provides details on All India Radio's network in India and compares AM and FM broadcasting methods.
Slides from Joan Warner, CEO of Commercial Radio Australia and WorldDAB Asia Pacific Chair, at Broadcast Asia 2016.
Joan looks at how to deliver Digital Radio on smartphones and the potential for hybrid radio applications, combining the best of DAB and IP.
During 2015, Ofcom UK licensed and co-ordinated a trial of small scale DAB . The report concludes that the trials were generally highly successful and achieved their three objectives.
The document summarizes South Africa's joint SADIBA/NAB DAB+ digital radio trial. It provides details on the trial such as its technical parameters, current status, findings from verification reports, and next steps. The trial aims to test DAB+ technology and demonstrate its advantages over analog radio through multiple phases, with the goal of helping develop policy and regulations for a commercial launch of digital radio in South Africa.
The document discusses digital terrestrial broadcasting (DTH) and direct broadcast satellite (DBS) services in Africa. It describes how DBS uses Ku-band frequencies which allow for smaller receiving dishes and portability. DBS systems offer many channels and clear signals and can serve remote areas. Issues discussed include set-top boxes, encryption, and concerns about sovereignty but benefits are easy access and high bandwidth. DBS offers an alternative or complement to wired/wireless systems and can help realize a global village if cultural issues are addressed.
DVB-S2 is the second-generation specification for satellite broadcasting developed by DVB in 2003. It uses more advanced channel coding (LDPC codes) and modulation formats (QPSK, 8PSK, 16APSK, 32APSK) for improved transmission performance, achieving up to a 30% increase in capacity over DVB-S. DVB-S2 allows for backwards compatibility with DVB-S receivers and uses adaptive coding and modulation to optimize transmission for different users and conditions. It provides high flexibility to work with different input streams, modulation schemes, and satellite transponder characteristics.
International Journal of Engineering Research and Applications (IJERA) is an open access online peer reviewed international journal that publishes research and review articles in the fields of Computer Science, Neural Networks, Electrical Engineering, Software Engineering, Information Technology, Mechanical Engineering, Chemical Engineering, Plastic Engineering, Food Technology, Textile Engineering, Nano Technology & science, Power Electronics, Electronics & Communication Engineering, Computational mathematics, Image processing, Civil Engineering, Structural Engineering, Environmental Engineering, VLSI Testing & Low Power VLSI Design etc.
DTH technology enables direct transmission of TV signals to homes through a satellite receiver installed in the house. In India, DTH services involve broadcasting encrypted multi-channel signals via satellites that subscribers can receive using a dish antenna and set-top box provided by the broadcasting company. Key components of DTH services include broadcasting centers that transmit signals to satellites, satellites that receive and rebroadcast the signals, and receivers and decoders in homes that unscramble the signals for viewing on TVs. DTH provides benefits like nationwide coverage, a large number of channel options, and eliminating intermediaries like cable operators.
My presentation at the workshop on Federated Satellite Systems, held at Skolkovo University (Skoltech) on October 14th 2014. Its title: "Software Defined Radio: an Enabling Technology for Interoperability in Federated Satellite Systems".
he ST Engineering iDirect Velocity™ product line is a shared,
two-way Time Division Multiple Access (TDMA) system built to
dynamically allocate bandwidth from a shared pool based on realtime
usage requirements. For commercial airlines, this means the
ability to deliver high throughput, bandwidth-efficient in-flight
connectivity by sharing a pool of bandwidth across a fleet or air-craft,
taking advantage of different flight patterns and time zones.
How can we encourage more private broadcasters to embrace DAB?WorldDAB
At the EBU’s Digital Radio Summit in February, this was the question Patrick Hannon posed to the audience – “how do we get more private broadcasters to embrace the benefits and opportunities of DAB?”
The first thing to recognise is that many commercial broadcasters have already embraced digital radio - launching new services, building brands and reaching audiences that simply would not have been possible on capacity-constrained FM.
But it’s also true that some remain sceptical, believing that DAB is a platform with limited prospects (and IP holds the answers for radio’s long term future), or worrying about the perceived threat of new competition or the increased costs of dual transmission.
The document discusses next generation wireless networks (xG networks) and cognitive radios. It describes how xG networks will provide high bandwidth via heterogeneous architectures and dynamic spectrum access techniques enabled by cognitive radios. Cognitive radios allow opportunistic use of spectrum by performing spectrum sensing to detect available channels, spectrum management to select the best channel, spectrum sharing to coordinate channel access, and spectrum mobility to vacate channels for licensed users. The document outlines the key functions, architectures, and challenges of cognitive radio and xG networks.
DTH (direct-to-home) television involves receiving satellite programs directly into homes via a personal dish. It was first proposed in India in 1996 but did not pass approval due to security and cultural concerns. The government eventually approved DTH in 2000 but required signals to be transmitted through Indian satellites. DTH now makes up less than 5% of the Indian pay TV market but is forecasted to grow at a 29% compound annual rate through 2012, reaching around 7.7 million subscribers. Key components of DTH systems include set top boxes that comply with MPEG standards to process satellite signals and display content on televisions.
This document provides an overview of the syllabus for the Cognitive Radios course offered by RMK College of Engineering and Technology. It discusses key topics that will be covered including SDR architecture, channel coding and decoding, RF access, IF processing, channel sets, multiple personalities, evolution support, joint control, and top level component interfaces. Standard interfaces in SDR systems are also described such as analog stream, source bit stream, clear bit streams, protected bit stream, IF waveform, RF waveform, and network interface.
The document discusses LARCAN's DVB-T/H solution. It provides an overview of DVB-H as an extension of DVB-T to enable digital video broadcast services on mobile devices. It also describes how to set up DVB-T/H networks, including planning, transmitters, distribution networks, and synchronization for single frequency networks. Testing and optimization procedures are outlined as well as network monitoring and quality control. LARCAN is positioned as a leader in digital transmitter solutions that can provide a complete DVB-H portfolio.
This document summarizes SAFE Inc.'s district wide paging and crisis notification system. The system allows a central office to notify all schools in a district of emergencies simultaneously through public address systems. It uses software to organize schools into groups and schedule alerts. The system integrates with third-party mass notification systems to also send emails and texts. It enables remote activation of school responses from the central office if local controls are unavailable.
Radio Interoperability Presentation Generic Gsa AcademyRandyHagar
The document discusses various levels of radio interoperability between public safety agencies and provides examples. It describes 6 levels from simple methods like swapping radios to more advanced systems that use standards-based shared networks. It also discusses current challenges to interoperability and efforts to improve coordination through funding programs and initiatives.
Using Communications to Manage Natural Disaster ResponseKatia Gryadunova
Critical Communications: A review of approaches to managing connectivity during natural disasters:
- Types of Disasters
- Approaches
- Real Life Case Study Examples
- Products and Services in a Disaster?
- Ways to Improve
- More Real Life Case Study Examples
Using Communications to Manage Natural Disaster ResponseSpeedCast
Title: Critical Communications: A review of approaches to managing connectivity during natural disasters:
- Definition
- Types of Disasters
- Approaches
- Real Life Case Study Examples
- Products and Services in a Disaster?
- Ways to Improve
- More Real Life Case Study Examples
The document describes the Alertus mass notification system and its compliance with various industry standards for emergency communications. It outlines Alertus' capabilities like wide-area notification, integration with fire alarm systems, and support for audible and visual alerts. The system allows users to send emergency notifications through a variety of channels including digital signs, TVs, phones, apps, and more to ensure people are informed in any situation.
A DAS is a network of antennas connected by cable that provides wireless coverage inside buildings. DAS are needed for public safety to improve coverage and reliability for first responders. The benefits of a public safety DAS include 95% building coverage, high quality of service, and improved reliability. Proper DAS design is important to ensure adequate coverage levels are met based on standards from NFPA and IFC. Components like filtered repeaters, backup power, and antennas supporting all public safety frequencies are important. New FCC rules require registration of bi-directional amplifiers used on public safety networks.
This document provides a training report on communication, navigation and surveillance (CNS) systems at Tulihal Airport in Imphal, Manipur. It discusses various CNS components including VHF communication, digital voice recorders, automatic terminal information service, automatic message switching systems, and instrument landing systems. It also includes sections on the training faculty, functions of the Airports Authority of India, and an acknowledgment section.
City Parklands Services Pty Ltd manages operational services for two Brisbane parklands. To improve communications for staff, a Motorola Capacity Plus system was implemented with 90 radios and two repeaters. This provided complete radio coverage, including in underground areas where coverage was previously inadequate. The system improved worker safety by ensuring emergency calls are received, increased productivity through better communication between teams, and ensured adequate communication channels for all staff groups.
Cordless systems and wireless local loop (WLL) technologies provide wireless connectivity for voice and data services. Cordless systems operate in residential and office environments using base stations to connect multiple handsets. WLL uses fixed wireless links to provide last mile connectivity, replacing wired local loops. It offers lower costs than wired networks and faster installation. Key challenges include propagation losses at high frequencies and impacts of rain, foliage, and other obstacles. Standards like DECT, PWT, 802.16, and protocols including TDMA and adaptive coding address these issues to enable wireless connectivity for local services.
The document discusses future scenarios for broadcast spectrum use and technologies. It outlines possibilities for digital television and radio services, including full analog to digital transition or hybrid models. New services like mobile TV and radio are also discussed. The spectrum could be shared between broadcast services and other wireless technologies to provide broadband access. Overall broadcasting is expected to continue evolving to distribute multimedia content across various platforms and devices.
GRAMSAT - For rural development & tele-educationDarshan Bhatt
The document describes GRAMSAT, a proposed Indian communications satellite dedicated to rural development and tele-education. GRAMSAT would use a Ku-band regenerative transponder payload to provide interactive training, broadcasting services, computer interconnectivity, and telemedicine to villages across India via small ground terminals. Key aspects of the proposed satellite include using spot beams, BPSK modulation for audio signals, and differential demodulation or DSP-based receivers on the ground. The goal of GRAMSAT is to help bring e-governance, disaster management, and educational opportunities to rural communities through satellite connectivity.
This document provides an overview, learning objectives, and content for an Air Interface-Modulation (AI-MOD) module. The module covers basic modulation concepts like amplitude modulation and frequency modulation. It then focuses on frequency modulation techniques used for mobile radio communications, including different types of shift keying and constant envelope modulation. The document lists industry contributors who provided support and materials for the module and individual contributors who helped develop the curriculum content.
Introduction to Operationalizing the Common Alerting Protocol (ITU-T X.1303) ...Nuwan Waidyanatha
Presentation made at the 4th Asia Pacific Telecommunity Workshop on Disaster Management and Communications. The presentation discusses the utility and implementation strategies of the Common Alerting Protocol (ITU-T X.1303) emergency communication standard.
The tutorial is designed for all those readers who are planning or pursuing the CDMA course to make their career in this field. However, it is also meant for the common readers who simply want to understand − what is CDMA Technology?
The document discusses developing a mobile application to improve the public addressing system at railway stations. It aims to make announcements clearer by sending notifications directly to passengers' devices. The proposed app would collect travel details from users and send only relevant announcements. It would use databases to store station announcements. The app's design includes interfaces for inputting travel data and receiving notifications. It would also track train locations and times. The goal is to provide passengers a more user-friendly way to access important travel announcements through their personal devices via the app or website.
satellite communication jntuh
Satellite Link Design: Basic Transmission Theory, System Noise Temperature, and G/T Ratio,
Design of Down Links, Up Link Design, Design Of Satellite Links For Specified C/N, System Design
Examples.
Multiple Access: Frequency Division Multiple Access (FDMA), Inter modulation, Calculation of C/N,
Time Division Multiple Access (TDMA), Frame Structure, Examples, Satellite Switched TDMA
Onboard Processing, DAMA, Code Division Multiple Access (CDMA), Spread Spectrum Transmission
and Reception.
Code Division Multiple Access (CDMA) could be a digital cellular tec.pdfannamalassociates
Code Division Multiple Access (CDMA) could be a digital cellular technology used for mobile
communication. CDMA is that the base on that access strategies like cdmaOne, CDMA-2000,
and WCDMA area unit designed. CDMA cellular systems area unit deemed superior to FDMA
and TDMA, that is why CDMA plays a essential role in building economical, robust, and secure
radio communication systems.
A Simple Analogy
Let’s take an easy analogy to grasp the thought of CDMA. Assume we\'ve a couple of students
gathered in a very room WHO would really like to speak to every alternative at the same time.
Nothing would be sonic if everybody starts speaking at constant time. Either they need to
alternate to talk or use totally different languages to speak.
The second choice is kind of just like CDMA students speaking constant language will perceive
one another, whereas alternative languages area unit perceived as noise and rejected. Similarly,
in radio CDMA, every cluster of users is given a shared code. several codes occupy constant
channel, however solely those users related to a selected code will communicate.
Salient options of CDMA
CDMA, that is predicated on the unfold spectrum technique has following salient options
In CDMA, each channel uses the total accessible spectrum.
Individual conversations area unit encoded with a pseudo-random digital sequence so transmitted
employing a wide frequency vary.
CDMA systematically provides higher capability for voice and knowledge communications,
permitting a lot of subscribers to attach at any given time.
CDMA is that the common platform on that 3G technologies area unit designed. For 3G, CDMA
uses 1x EV-DO and EV-DV.
Third Generation Standards
CDMA2000 uses Frequency Division Duplexing-Multicarrier (FDD-MC) mode. Here,
multicarrier implies N × one.25 Mc channels overlaid on N existing IS-95 carriers or deployed
on unoccupied spectrum. CDMA2000 includes
1x — uses a spreading rate of one.2288 Mcps.
3x — uses a spreading rate of three × one.2288 Mcps or three.6864 Mcps.
1xEV-DO (1x Evolution – knowledge Optimized) — uses a spreading rate of one.2288 Mcps,
optimized for the info.
WCDMA/FDD-DS — band CDMA (WCDMA) Frequency Division Duplexing-Direct Sequence
spreading (FDD-DS) mode. This encompasses a single five Mc channel. WCDMA uses one
carrier per channel and employs a spreading rate of three.84 Mcps.
CDMA Development cluster (CDG)
The CDMA Development cluster (CDG), supported in Dec 1993, is a world pool of firms. It
works along to steer the expansion and evolution of advanced wireless telecommunication
systems.
CDG is comprised of service suppliers, infrastructure makers, device vendors, equipment
vendors, application developers, and content suppliers. Its members put together outline the
technical needs for the event of complementary systems CDMA2000 and 4G. Further, the ability
with alternative rising wireless technologies area unit meant to extend the provision of wireless
merchandise and services to customers and .
Digital radio provides enhanced features compared to analog radio through the DRM standard, including:
1) Additional services like data and multimedia can be transmitted alongside audio on a single frequency.
2) Receivers can automatically retune to alternative frequencies for seamless coverage across different transmitters.
3) Dynamic service information allows listeners to easily find and select stations by name instead of frequency.
4) Licensing fees for DRM are transparent and affordable for manufacturers to adopt as an open standard technology.
Similar to Use of DAB Satellite for Addressable Alert Delivery (20)
The ISCRAM ASIA 2012 Conference on Information Systems for Crisis Response and Management will be held from October 17-19, 2012 in Beijing, China. The conference is jointly sponsored by Harbin Engineering University, Tsinghua University, and the Institute of Disaster Prevention. It will focus on theoretical and practical problems of crisis warning, forecasting, supervision, evaluation, drilling and decision making related to natural disasters, environmental disasters, city security, and more. Key dates include a July 16 deadline for full paper submissions and an August 16 notification of acceptance.
This document outlines the syllabus and approach for a seminar on information management. It emphasizes hands-on group work using social media and new technologies. Students will form groups to develop an idea or project, documenting their process using media. They will produce deliverables like a group report, video, and presentation. To prepare, students are asked to join social media groups, propose a group idea, and make an initial presentation on their proposed work. The goal is for students to have an interactive learning experience developing skills with new technologies through their collaborative projects.
Jaap van de Herik dinnertalk at ISCRAM Summer School 25 Augustusglobal
The document discusses various topics related to human relationships with computers. It summarizes research on how humans have developed emotional attachments to pets, virtual pets, and may develop similar attachments to robots. The document also discusses predictions that human sexuality and relationships will extend to embrace intimate relationships with highly advanced future robots. Research questions are posed about what causes emotional attachments and why people enjoy or pay for sex. The conclusions are that emotional attachments and normal bounds of human sexuality will fully extend to future human-robot relationships.
Patrick Gordon ISCRAM2009 Summer School One Response Presentationglobal
OneResponse is a collaborative website designed by the UN to enhance humanitarian coordination. It allows clusters to manage and share information internally and externally. Key features include hosting country-specific sites within 24 hours of an emergency, operating in low bandwidth environments, categorizing information as public or private, and providing tools for document management, collaboration, and communication. Next steps involve piloting the site in two countries and incorporating lessons learned before a full global roll out in 2010.
2009 ISCRAM Summer School Program Book 08082009global
This lecture will provide an overview of Microsoft's involvement in disaster and crisis management, focusing on two solutions they have developed: OneResponse, a web-based crisis management platform; and Microsoft Vine, a social network for first responders to share information during emergencies. The presentation will explain how these tools were developed and how they aim to support coordination and information sharing among responders.
The document discusses the upcoming Joint ISCRAM-CHINA & Gi4DM conference in Harbin, China from August 5-6, 2008. The conference will focus on how geo-information technologies can provide useful tools for disaster management by providing spatial context and enabling location-based services, analysis of routes and predictions, and monitoring through sensors. The mission of Gi4DM is to promote geo-information technologies for disaster management among developers, researchers, and users. Previous conferences in the series have been held in the Netherlands, India, and Canada.
The document describes a community-based vulnerability assessment of flood risk reduction in central Mozambique. It discusses using participatory mapping and scoring exercises with local communities to identify vulnerability factors and map risk zones, settlements, and other features. Key findings included that communities prioritized different vulnerability factors for floods versus droughts, and that transportation, health services, and education were generally highly ranked vulnerability factors. The goal was to facilitate vulnerability reduction at the local level through integration of community input into mapping and decision-making.
Globalisation of healthcare by virtualisation of hospitalsglobal
This document discusses the globalization of healthcare through the virtualization of hospitals. It describes how satellite networks can enable real-time digital medicine and telemedical applications across borders. The Charité hospital in Berlin is used as an example of a large university hospital that is exploring technologies like virtual reality, ambient intelligence, and robotics to deliver healthcare through virtual hospitals by the year 2020. However, users' acceptance of new technologies will be important, and the focus should be on optimizing healthcare delivery rather than maximizing innovation. Global health also faces challenges around developing sustainable economic models and shifting focus from curative to preventative medicine.
GIS platforms: the power of interoperabilityglobal
1) GIS can act as an interoperable platform to integrate disparate data from various sources and make it accessible for emergency response.
2) Lessons from Hurricane Katrina showed that a lack of standardized data and GIS applications across regions hindered coordination between organizations and led to confusion during the crisis response.
3) Having an integrated GIS database with consistent data models and applications in place before a disaster can save precious time during emergency response and recovery efforts.
This document summarizes a session from the Second UN-SPIDER Workshop on advancing knowledge for human security and development. The session focused on vulnerability and risk assessment and how remote sensing data can be used for these purposes. The goals of the session were to discuss how remote sensing data can be used for vulnerability and risk assessment at different scales, how it can be combined with statistical data, and who might benefit from using the data. Participants then broke into subgroups to further discuss issues relating to vulnerability, hazards and risk, and using information for disaster preparedness and response.
Spatial ICTs for risk identification and risk reduction:Three geographic sca...global
International Day for Disaster Reduction at the World Bank
Disaster Risk Management in the Information Age
A joint training workshop by GICT, GFDRR, infoDev and LCSUW to mark the International Day for Disaster Reduction
Information Systems for Disaster Risk Management in LACglobal
International Day for Disaster Reduction at the World Bank
Disaster Risk Management in the Information Age
A joint training workshop by GICT, GFDRR, infoDev and LCSUW to mark the International Day for Disaster Reduction
Disaster Risk Management in the Information Ageglobal
This document summarizes the World Food Programme's (WFP) role in emergency preparedness and response. It discusses how WFP is often first on the ground in emergencies and a leader in emergency preparedness. It also outlines WFP's emergency response mechanism, including its use of focal points, private sector partnerships, pre-positioned stock and equipment, and standardized ICT and communications tools and training. The presentation concludes with a question and answer section.
Disaster Risk Management in the Information Ageglobal
International Day for Disaster Reduction at the World Bank
Disaster Risk Management in the Information Age
A joint training workshop by GICT, GFDRR, infoDev and LCSUW to mark the International Day for Disaster Reduction
Disaster Risk Management in the Information Ageglobal
International Day for Disaster Reduction at the World Bank
Disaster Risk Management in the Information Age
A joint training workshop by GICT, GFDRR, infoDev and LCSUW to mark the International Day for Disaster Reduction
International Day for Disaster Reduction at the World Bank
Disaster Risk Management in the Information Age
A joint training workshop by GICT, GFDRR, infoDev and LCSUW to mark the International Day for Disaster Reduction
International Day for Disaster Reduction at the World Bank
Disaster Risk Management in the Information Age
A joint training workshop by GICT, GFDRR, infoDev and LCSUW to mark the International Day for Disaster Reduction
Design of Emergency Response Management Information Systemsglobal
DERMIS is a proposed dynamic emergency response management information system that aims to address challenges in coordinating emergency response efforts. It would utilize a transaction system integrated with a structured group communication system. Users could create and modify event templates and roles at any time to evolve the system based on needs. DERMIS could be used for all phases of emergency response as well as for training, evaluation, and recovery efforts across a variety of emergency types and organizations. The goal is a flexible system that encourages collaboration and adapts to changing situations.
The document announces a conference on information systems for crisis management to be held from August 4-6, 2008 in Harbin, China. The conference is a joint event between ISCRAM-CHINA and GI4DM. One of the topics to be discussed is "Emergency 2.0: From Standards to Social Networking" and how social networking can get local citizens involved in emergency management processes by utilizing them as first responders.
Strategies for Effective Upskilling is a presentation by Chinwendu Peace in a Your Skill Boost Masterclass organisation by the Excellence Foundation for South Sudan on 08th and 09th June 2024 from 1 PM to 3 PM on each day.
This slide is special for master students (MIBS & MIFB) in UUM. Also useful for readers who are interested in the topic of contemporary Islamic banking.
Exploiting Artificial Intelligence for Empowering Researchers and Faculty, In...Dr. Vinod Kumar Kanvaria
Exploiting Artificial Intelligence for Empowering Researchers and Faculty,
International FDP on Fundamentals of Research in Social Sciences
at Integral University, Lucknow, 06.06.2024
By Dr. Vinod Kumar Kanvaria
How to Fix the Import Error in the Odoo 17Celine George
An import error occurs when a program fails to import a module or library, disrupting its execution. In languages like Python, this issue arises when the specified module cannot be found or accessed, hindering the program's functionality. Resolving import errors is crucial for maintaining smooth software operation and uninterrupted development processes.
This presentation includes basic of PCOS their pathology and treatment and also Ayurveda correlation of PCOS and Ayurvedic line of treatment mentioned in classics.
ISO/IEC 27001, ISO/IEC 42001, and GDPR: Best Practices for Implementation and...PECB
Denis is a dynamic and results-driven Chief Information Officer (CIO) with a distinguished career spanning information systems analysis and technical project management. With a proven track record of spearheading the design and delivery of cutting-edge Information Management solutions, he has consistently elevated business operations, streamlined reporting functions, and maximized process efficiency.
Certified as an ISO/IEC 27001: Information Security Management Systems (ISMS) Lead Implementer, Data Protection Officer, and Cyber Risks Analyst, Denis brings a heightened focus on data security, privacy, and cyber resilience to every endeavor.
His expertise extends across a diverse spectrum of reporting, database, and web development applications, underpinned by an exceptional grasp of data storage and virtualization technologies. His proficiency in application testing, database administration, and data cleansing ensures seamless execution of complex projects.
What sets Denis apart is his comprehensive understanding of Business and Systems Analysis technologies, honed through involvement in all phases of the Software Development Lifecycle (SDLC). From meticulous requirements gathering to precise analysis, innovative design, rigorous development, thorough testing, and successful implementation, he has consistently delivered exceptional results.
Throughout his career, he has taken on multifaceted roles, from leading technical project management teams to owning solutions that drive operational excellence. His conscientious and proactive approach is unwavering, whether he is working independently or collaboratively within a team. His ability to connect with colleagues on a personal level underscores his commitment to fostering a harmonious and productive workplace environment.
Date: May 29, 2024
Tags: Information Security, ISO/IEC 27001, ISO/IEC 42001, Artificial Intelligence, GDPR
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বাংলাদেশের অর্থনৈতিক সমীক্ষা ২০২৪ [Bangladesh Economic Review 2024 Bangla.pdf] কম্পিউটার , ট্যাব ও স্মার্ট ফোন ভার্সন সহ সম্পূর্ণ বাংলা ই-বুক বা pdf বই " সুচিপত্র ...বুকমার্ক মেনু 🔖 ও হাইপার লিংক মেনু 📝👆 যুক্ত ..
আমাদের সবার জন্য খুব খুব গুরুত্বপূর্ণ একটি বই ..বিসিএস, ব্যাংক, ইউনিভার্সিটি ভর্তি ও যে কোন প্রতিযোগিতা মূলক পরীক্ষার জন্য এর খুব ইম্পরট্যান্ট একটি বিষয় ...তাছাড়া বাংলাদেশের সাম্প্রতিক যে কোন ডাটা বা তথ্য এই বইতে পাবেন ...
তাই একজন নাগরিক হিসাবে এই তথ্য গুলো আপনার জানা প্রয়োজন ...।
বিসিএস ও ব্যাংক এর লিখিত পরীক্ষা ...+এছাড়া মাধ্যমিক ও উচ্চমাধ্যমিকের স্টুডেন্টদের জন্য অনেক কাজে আসবে ...
How to Setup Warehouse & Location in Odoo 17 InventoryCeline George
In this slide, we'll explore how to set up warehouses and locations in Odoo 17 Inventory. This will help us manage our stock effectively, track inventory levels, and streamline warehouse operations.
Pengantar Penggunaan Flutter - Dart programming language1.pptx
Use of DAB Satellite for Addressable Alert Delivery
1. Use of DAB Satellite for Addressable Alert Delivery Presentation at the Training Workshop on Disaster Risk Management in the Information Age by S.Rangarajan, WorldSpace at the World Bank October 8-9, 2008
2. WorldSpace: a snapshot Creating a Digital Library Solar Powered Selectively Addressable Automatic Alerts Individual Transmission to Audio Receivers Village Classroom Emergency Situations In Service In Service Wide Coverage
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5. Alert Delivery- How it works WorldSpace Satellite Uplink CAP format Radio or Land lines Event Sensors Warning Centers To AREA Receivers CAP formatting, Audio in Multiple Languages Satellite Coverage Area
13. Stakeholders: Indonesia Datacast for Group of Media Companies Re-use Strategy Chosen BMG Hub Operation Private Sector Integrator Training & Upkeep Media companies Custodians for Receivers Advertisers Datacast Content BMG (Government) Alert Content WorldSpace Channel Capacity
15. Stakeholders: Sri Lanka Audio channel 24 x 7 for community use Re-use Strategy Chosen Sarvodaya HIH Operation Sarvodaya Training & Upkeep Sarvodaya Village Units Custodians for Receivers Sarvodaya (NGO) Audio Content DMC (Government) Alert Content WorldSpace Channel Capacity
17. Stakeholders: Bangladesh Audio channel 24 x 7 for use in fishing boats (PFZ, Weather etc.) Re-use Strategy Chosen DMB- Trained by Vista and BUET HIH Operation Vista Communications Training & Upkeep Individuals Custodians for Receivers Vista Communications (Private Sector) Audio Content DMB (Government) Alert Content WorldSpace Channel Capacity