Stratellites are high-altitude airships stationed in the stratosphere rather than orbiting Earth. They can provide satellite-like communication, navigation, and remote sensing services to a large area of 300,000 square miles with less latency than satellites. Stratellites use helium, solar cells, and electric motors to float 13 miles above the Earth's surface while stationary. They have advantages over satellites such as lower launch costs and shorter signal delays, but developing the technology poses challenges like traffic management in the stratosphere.
This presentation covers:
Basics of Satellite communication
Indian Communication satellites
Satellite link and elements of satellite communication
Frequency bands of satellite communication
Different orbits of satellite communication
Link budget calculations
this presentation is about satellite communication which includes working of gps ,vsat ,frequency bands ,needs of communication satellite ,types of satellite ,working ,orbits ,elements involved in working ,transponder ,satellite control center ,satellite network
What is 5G NR all about? Check out this presentation to see all the key design components of this new unifying air interface for the next decade and beyond.
An antenna is the most important device in a cell-phone in terms of wireless communication. If the antenna doesn't work very well, the signal strength drops drastically. For the design of cell-phone antennas, we can adopt a dipole, helical, PIFA (Planar Inverted F Antenna), or intennas.
This presentation gives an insight about various antennas that were in use in cell phones and are being used in today's smartphones. Images of various phone models showing antenna used are included to give pictorial view of internal antennas
This presentation covers:
Basics of Satellite communication
Indian Communication satellites
Satellite link and elements of satellite communication
Frequency bands of satellite communication
Different orbits of satellite communication
Link budget calculations
this presentation is about satellite communication which includes working of gps ,vsat ,frequency bands ,needs of communication satellite ,types of satellite ,working ,orbits ,elements involved in working ,transponder ,satellite control center ,satellite network
What is 5G NR all about? Check out this presentation to see all the key design components of this new unifying air interface for the next decade and beyond.
An antenna is the most important device in a cell-phone in terms of wireless communication. If the antenna doesn't work very well, the signal strength drops drastically. For the design of cell-phone antennas, we can adopt a dipole, helical, PIFA (Planar Inverted F Antenna), or intennas.
This presentation gives an insight about various antennas that were in use in cell phones and are being used in today's smartphones. Images of various phone models showing antenna used are included to give pictorial view of internal antennas
Physical Layer Technologies And Challenges In Mobile Satellite CommunicationsIDES Editor
The central features of the future fourth-generation
mobile communication systems are the provisioning of highspeed
data transmissions (up to 1 Gb/s) and interactive
multimedia services. For effective delivery of these services,
the network must satisfy some stringent quality-of-service
(QoS) metrics, defined typically in terms of maximum delay
and/or minimum throughput performances. Mobile satellite
systems will be fully integrated with the future terrestrial
cellular systems, playing important roles as back-bones or
access satellites, to provide ubiquitous global coverage to
diverse users. The challenges for future broadband satellite
systems, therefore, lie in the proper deployments of state-ofthe-
art satellite technologies to ensure seamless integration of
the satellite networks into the cellular systems and its QoS
frameworks, while achieving, to the extent possible, efficient
use of the precious satellite link resources. This paper presents
an overview of the future high-speed satellite mobile
communication systems, the technologies deployed or planned
for deployments, and the challenges.
Satellite Antennas: Exploring their Functionality, Types, Applications and th...GQ Research
In this article, we delve into the fascinating world of satellite antennas, exploring their functionality, types, applications, and the future of satellite communication.
Satellites play a significant role in communication, early warning systems, global broadcasting, meteorology, navigation, reconnaissance, remote sensing, and surveillance.Satellite services cover practically every sector, from mobile cellular communication to telemedicine, so any interference with them could have a serious effect. Satellites are a strategic asset for any country and are considered as “critical infrastructure,” therefore they are considerable as privileged targets for a possible cyber attack.
Outernet Inc is a global broadcast data start-up currently being incubated by the Media Development Investment Fund (MDIF), a United States-based impact investment fund and non-profit organization established in 1995 by Saša Vučinić and Stuart Auerbach. Outernet's goal is to provide free access to content from the web through geostationary and Low Earth Orbit satellites, made available effectively to all parts of the world.
The project uses datacasting and User Datagram Protocol through both small satellites, such as CubeSats, and larger, more conventional geostationary communications satellites in a satellite constellation network. Wi-Fi enabled devices would communicate with the satellite hotspots, which receive data broadcasts from satellites.
UAV base stations are expected to become a flexible, reliable endurance communication base station, especially as an emergency solution for typhoons, landslides, earthquake natural disasters, and extreme conditions. The author of this article will take you into the world of drones and explore the truth of drone technology.
This is a presentation by Dada Robert in a Your Skill Boost masterclass organised by the Excellence Foundation for South Sudan (EFSS) on Saturday, the 25th and Sunday, the 26th of May 2024.
He discussed the concept of quality improvement, emphasizing its applicability to various aspects of life, including personal, project, and program improvements. He defined quality as doing the right thing at the right time in the right way to achieve the best possible results and discussed the concept of the "gap" between what we know and what we do, and how this gap represents the areas we need to improve. He explained the scientific approach to quality improvement, which involves systematic performance analysis, testing and learning, and implementing change ideas. He also highlighted the importance of client focus and a team approach to quality improvement.
How to Make a Field invisible in Odoo 17Celine George
It is possible to hide or invisible some fields in odoo. Commonly using “invisible” attribute in the field definition to invisible the fields. This slide will show how to make a field invisible in odoo 17.
Welcome to TechSoup New Member Orientation and Q&A (May 2024).pdfTechSoup
In this webinar you will learn how your organization can access TechSoup's wide variety of product discount and donation programs. From hardware to software, we'll give you a tour of the tools available to help your nonprofit with productivity, collaboration, financial management, donor tracking, security, and more.
Students, digital devices and success - Andreas Schleicher - 27 May 2024..pptxEduSkills OECD
Andreas Schleicher presents at the OECD webinar ‘Digital devices in schools: detrimental distraction or secret to success?’ on 27 May 2024. The presentation was based on findings from PISA 2022 results and the webinar helped launch the PISA in Focus ‘Managing screen time: How to protect and equip students against distraction’ https://www.oecd-ilibrary.org/education/managing-screen-time_7c225af4-en and the OECD Education Policy Perspective ‘Students, digital devices and success’ can be found here - https://oe.cd/il/5yV
We all have good and bad thoughts from time to time and situation to situation. We are bombarded daily with spiraling thoughts(both negative and positive) creating all-consuming feel , making us difficult to manage with associated suffering. Good thoughts are like our Mob Signal (Positive thought) amidst noise(negative thought) in the atmosphere. Negative thoughts like noise outweigh positive thoughts. These thoughts often create unwanted confusion, trouble, stress and frustration in our mind as well as chaos in our physical world. Negative thoughts are also known as “distorted thinking”.
Operation “Blue Star” is the only event in the history of Independent India where the state went into war with its own people. Even after about 40 years it is not clear if it was culmination of states anger over people of the region, a political game of power or start of dictatorial chapter in the democratic setup.
The people of Punjab felt alienated from main stream due to denial of their just demands during a long democratic struggle since independence. As it happen all over the word, it led to militant struggle with great loss of lives of military, police and civilian personnel. Killing of Indira Gandhi and massacre of innocent Sikhs in Delhi and other India cities was also associated with this movement.
How to Create Map Views in the Odoo 17 ERPCeline George
The map views are useful for providing a geographical representation of data. They allow users to visualize and analyze the data in a more intuitive manner.
2. CONTENTS:
INTRODUCTION
EXISTING TECHNOLOGY
LAYERS OF ATMOSPHERE
STRATELLITES
CONSTRUCTION AND WORKING
SATELLITE V/S STRATELLITE
ADVANTAGES
DISADVANTAGES
APPLICATIONS
CONCLUTION
3. INTRODUCTION
Wireless communication is simply data communication
without the use of direct cable links. This may involve
cellular telephone, two-way radio, fixed wireless
(broadband wireless), laser (free space optics) or satellite
communication systems.
Mobile wireless technologies are going to act as glue
towards bringing together the wired and wireless to share
and distribute information seamlessly across each other’s
areas of reference.
My topic takes this to a step ahead to the present
communication
4. Existing Technology
Satellites:
Satellite is an artificial object which has been intentionally placed into higher orbits.
Satellite communication is the backbone of wireless communications and global positioning
systems.
Satellite in orbit of the planet cover huge footprint territories
Satellites come in 4 types:
I.Geo-stationary
II.Sun-synchronous
III.Geosynchronous
IV.Low-earth orbit
5. Existing Technology
Advantages of Satellite communication:
•High Bandwidth
•Coverage over a large geographical area
•Can be cheaper over long distances
Drawbacks of satellites:
Two main drawbacks of satellites.
The first is signal latency, which can cause problems in establishing broadband links.
Most telecommunications satellites are in geostationary orbit to remain above a certain point on
the Earth’s surface.
That orbit, however, is 22,240 miles above the Earth, which means that a signal going up to the
satellite(uplink) and back to the Earth(downlink) travels nearly 45,000 miles, which equates to about
a quarter of a second delay.
Even users of satellite voice links notice the delay.
6. Drawbacks of satellites:
The second drawback is that satellites are in space,
requiring expensive space launches, an additional level of regulation by
national space authorities, and an orbital allotment by the International
Telecommunications Union (ITU).
Also they include noise and interference due to large distance between
transmitter and receiver units.
9. Stratellites
A stratellite is similar to a satellite, but
is stationed in the stratosphere rather
than on the orbit.
01
Stratellite is a “High Altitude
Airship(HAA)”, which is positioned
approximately 13 miles above the
earth, which provides the benefits of
a satellite like remote sensing,
navigation and communication
02
Each Stratellite will have clear line-of-
site communications capability to an
entire major-metropolitan area as
well as being able to provide
coverage across major rural areas.
03
10. The Stratellite is designed to carry certain payloads into the
Stratosphere determined by the requirements of the customer.
A single unit could send broadband, mobile phone and digital
television and radio signals to a large area. The ‘unmanned’ Stratellite
would be powered by solar cells and propelled by electric motors.
12. Construction
Outer layer is made of spectra is a fabric used in bullet
proof vests.
Filled with a mixture of helium and air
Consists of:
Propeller
Solar cells
Regenerative fuel cells
Helium gas bag
Transponder
Hybrid electric motors
Wireless communication and rador devices
13. Working
Inside is filled with Helium gas,
as it is inert gas not flammable.
The Helium gas expands
pushing out air and lifting the
airship.
Uses solar cells sprayed on
their surface to generate
electricity.
The generated electricity drives
propellers that work with GPS
technology to keep the
stratellite stationary.
14.
15. Advantages
Decreases Signal latency
Less expensive to launch
Service an area of 300,000 square-miles
Two-way high speed data communication
High speed broad-band access even in remote area.
For a country two stratellites are enough instead of thousands of
towers
16. Stratellites will carry over 20,000 pounds of radars and
other remote imaging equipment, navigational aids,
and telecommunications relays.
Stratellites are planned to remain on station for a year
at a time and will cost a one fifth as much as a
comparable satellite
17. Disadvantages
May lead to traffic problems in stratosphere.
Would require efficient ground control and maintenance.
So far, this technology remains non-commercialized, and is
in a prototype stage for further developments
18. Applications
In environmental disasters telecommunication breaks down within
seconds, Re-installation of the infrastructure takes weeks or months.
The Stratellite can be used as a floating mobile telecommunication station
for all telecommunication purposes and the transmission of temporary
data communication, telecommunication and Tvprograms as well as long-
term missions over metropolitan cities.
The Stratellite will allow subscribers to easily communicate in "both
directions" using readily available wireless devices.
In addition to voice and data, proposed telecommunications uses include
cellular, 3G/4G mobile, MMDS, paging, fixed wireless telephony, HDTV,
real-time surveillance and OTHERS.
Application case : “Google’s Project Loon”
19. Conclusion
Probably the most "far out there" concept in this roundup, Stratellite is actually
much closer to reality than what you may think.
Once the defects of Stratellites have been overcome and become more reliable,
they play a vital role in the future generation wireless communication.
This is a promising technology that could combine the best of Satellite and wired
Internet - fast with low latency and hugely widespread, at least in theory.
