This paper presents a reconfigurable processor for different digital signal processing applications. The performance of the proposed architecture has been evaluated by taking different dsp applications like Low pass filter, high pass filter, finite impulse response (FIR) filter and FFT module. We designed the architecture of the processor and realizing the architecture using adder, multiplier, delay unit and validate it in the FPGA, which show that the hardware scheme is feasible for practical application. The experimental results clearly reveal the novelty of the architecture for dsp applications. This paper investigates the potential use of FPGAs for implementing efficient “Reconfigurable Processor” for different dsp applications. The proposed processor is based on parallel re-configurable which is implemented on FPGA. FPGAs have become an important component for implementing these functions with respect to cost, performance and flexibility. The general purpose SPARTAN 3AN FPGA kit has been employed for developing reconfigurable processor, with all the coding done using the hardware description language VERILOG.
IJRET : International Journal of Research in Engineering and Technology is an international peer reviewed, online journal published by eSAT Publishing House for the enhancement of research in various disciplines of Engineering and Technology. The aim and scope of the journal is to provide an academic medium and an important reference for the advancement and dissemination of research results that support high-level learning, teaching and research in the fields of Engineering and Technology. We bring together Scientists, Academician, Field Engineers, Scholars and Students of related fields of Engineering and Technology.
Optimization of Cmos 0.18 µM Low Noise Amplifier Using Nsga-Ii for UWB Applic...VLSICS Design
A design and optimization of 3-5 GHz single ended Radio Frequency (RF) Low Noise Amplifier (LNA) for
ultra-wide-band (UWB) applications using standard UMC 0.18 μm CMOS technology is reported.
Designing of RF circuit components is a challenging job, since even after performing lengthy calculations
and finding parameter values it is less guarantee that the design performs as expected. In view of this the
optimization tool; Elitist Non-Dominated Sorting Genetic Algorithm (NSGA-II); has been employed to get
the optimized starting values of components in the proposed LNA design. The obtained NSGA-II
parameters were simulated using Cadence Spectre- RF simulator. The designed Low Noise Amplifier
achieves a power gain of 22 dB and a minimum Noise Figure of 3 dB is achieved. It dissipates 12.5 mW of
power out of 1.8 V supply.
“FIELD PROGRAMMABLE DSP ARRAYS” - A NOVEL RECONFIGURABLE ARCHITECTURE FOR EFF...sipij
Digital Signal Processing functions are widely used in real time high speed applications. Those functions
are generally implemented either on ASICs with inflexibility, or on FPGAs with bottlenecks of relatively
smaller utilization factor or lower speed compared to ASIC. The proposed reconfigurable DSP processor is
redolent to FPGA, but with basic fixed Common Modules (CMs) (like adders, subtractors, multipliers,
scaling units, shifters) instead of CLBs. This paper introduces the development of a reconfigurable DSP
processor that integrates different filter and transform functions. The switching between DSP functions is
occurred by reconfiguring the interconnection between CMs. Validation of the proposed reconfigurable
architecture has been achieved on Virtex5 FPGA. The architecture provides sufficient amount of flexibility,
parallelism and scalability.
IJRET : International Journal of Research in Engineering and Technology is an international peer reviewed, online journal published by eSAT Publishing House for the enhancement of research in various disciplines of Engineering and Technology. The aim and scope of the journal is to provide an academic medium and an important reference for the advancement and dissemination of research results that support high-level learning, teaching and research in the fields of Engineering and Technology. We bring together Scientists, Academician, Field Engineers, Scholars and Students of related fields of Engineering and Technology.
Optimization of Cmos 0.18 µM Low Noise Amplifier Using Nsga-Ii for UWB Applic...VLSICS Design
A design and optimization of 3-5 GHz single ended Radio Frequency (RF) Low Noise Amplifier (LNA) for
ultra-wide-band (UWB) applications using standard UMC 0.18 μm CMOS technology is reported.
Designing of RF circuit components is a challenging job, since even after performing lengthy calculations
and finding parameter values it is less guarantee that the design performs as expected. In view of this the
optimization tool; Elitist Non-Dominated Sorting Genetic Algorithm (NSGA-II); has been employed to get
the optimized starting values of components in the proposed LNA design. The obtained NSGA-II
parameters were simulated using Cadence Spectre- RF simulator. The designed Low Noise Amplifier
achieves a power gain of 22 dB and a minimum Noise Figure of 3 dB is achieved. It dissipates 12.5 mW of
power out of 1.8 V supply.
“FIELD PROGRAMMABLE DSP ARRAYS” - A NOVEL RECONFIGURABLE ARCHITECTURE FOR EFF...sipij
Digital Signal Processing functions are widely used in real time high speed applications. Those functions
are generally implemented either on ASICs with inflexibility, or on FPGAs with bottlenecks of relatively
smaller utilization factor or lower speed compared to ASIC. The proposed reconfigurable DSP processor is
redolent to FPGA, but with basic fixed Common Modules (CMs) (like adders, subtractors, multipliers,
scaling units, shifters) instead of CLBs. This paper introduces the development of a reconfigurable DSP
processor that integrates different filter and transform functions. The switching between DSP functions is
occurred by reconfiguring the interconnection between CMs. Validation of the proposed reconfigurable
architecture has been achieved on Virtex5 FPGA. The architecture provides sufficient amount of flexibility,
parallelism and scalability.
Sigma-Delta Analog to Digital ConvertersSatish Patil
In recent years Sigma-Delta ADCs became one of the most popular types of Analog-to-Digital converters. The key features of these are high-speed, high resolution and low operating voltages. These are commonly used in variety of applications like digital audio CDs, CODEC, biomedical sensor applications and wireless transmitters/receivers. The basic principles involved in this technique are oversampling and noise shaping. This report reviews different techniques proposed for high resolution, low power Sigma-Delta ADC. Conventional design of SDM was dominated by discrete time architecture but in modern designs continuous types are also becoming famous because of their low power attributes. Continuous efforts have been taken to reduce the supply voltages of SDM and recently, lowest reported is 250mv.
Design of Multiplier Less 32 Tap FIR Filter using VHDLIJMER
This Paper provide the principles of Distributed Arithmetic, and introduce it into the FIR
filters design, and then presents a 32-Tap FIR low-pass filter using Distributed Arithmetic, which save
considerable MAC blocks to decrease the circuit scale and pipeline structure is also used to increase the
system speed. The implementation of FIR filters on FPGA based on traditional method costs considerable
hardware resources, which goes against the decrease of circuit scale and the increase of system speed.
It is very well known that the FIR filter consists of Delay elements, Multipliers and Adders. Because of
usage of Multipliers in early design gives rise to 2 demerits that are:
(i) Increase in Area and
(ii) Increase in the Delay which ultimately results in low performance (Less speed).
So the Distributed Arithmetic for FIR Filter design and Implementation is provided in this work to solve
this problem. Distributed Arithmetic structure is used to increase the recourse usage and pipeline
structure is used to increase the system speed. Distributed Arithmetic can save considerable hardware
resources through using LUT to take the place of MAC units
Design of Continuous Time Multibit Sigma Delta ADC for Next Generation Wirele...IJERA Editor
This paper presents the design of CT ΣΔ modulator which can provide high DR and SNR over a 20 MHz signal bandwidth. So far all the CT SDM uses either feedback or feedforward loop filter architecture. The proposed topology is a 3rd order low-pass sigma-delta modulator, which employs a combination of feedforward and feedback schemes. Loop filter is designed as RC integrators due to its high linearity and easy interface. The design starts from system level using Matlab/Simulink. Then, the first integrator in the loop, which is the most critical block in the modulator, is implemented at transistor level using Cadence Virtuoso 180 nm CMOS technology.
International Journal of Engineering Inventions (IJEI) provides a multidisciplinary passage for researchers, managers, professionals, practitioners and students around the globe to publish high quality, peer-reviewed articles on all theoretical and empirical aspects of Engineering and Science.
Analysis of different FIR Filter Design Method in terms of Resource Utilizati...ijsrd.com
In this paper fully parallel FIR filters are designed with different design method on FPGA for resource utilization and response analysis. fully parallel band-pass FIR filters with same specification designed and simulated on ISE. The suggested implementations are synthesized with Xilinx ISE 14.2 version. Results show comparison of three different filter design methods in terms of resource utilization.
Efficient FPGA implementation of high speed digital delay for wideband beamfor...journalBEEI
In this paper, the authors present an FPGA implementation of a digital delay for beamforming applications. The digital delay is based on a Parallel Farrow Filter. Such architecture allows to reach a very high processing rate with wideband signals and it is suitable to be used with Time-Interleaved Analog to Digital Converters (TI-ADC). The proposed delay has been simulated in MATLAB, implemented on FPGA and characterized in terms of amplitude and phase response, maximum clock frequency and area.
A Simulation of Wideband CDMA System on Digital Up/Down ConvertersEditor IJMTER
In this paper, I present FPGA implementation of a digital down converter (DDC) and
digital up converter (DUC) for a single carrier WCDMA system. The DDC and DUC is complex in
nature. The implementation of DDC is simple because it does not require mixers or filters. Xilinx
System Generator and Xilinx ISE are used to develop the hardware circuit for the FPGA. Both the
circuits are verified on the Spartan - 3 FPGA
OPTIMIZATION OF CMOS 0.18 M LOW NOISE AMPLIFIER USING NSGA-II FOR UWBVLSICS Design
A design and optimization of 3-5 GHz single ended Radio Frequency (RF) Low Noise Amplifier (LNA) for ultra-wide-band (UWB) applications using standard UMC 0.18 µm CMOS technology is reported. Designing of RF circuit components is a challenging job, since even after performing lengthy calculations and finding parameter values it is less guarantee that the design performs as expected. In view of this the optimization tool; Elitist Non-Dominated Sorting Genetic Algorithm (NSGA-II); has been employed to get the optimized starting values of components in the proposed LNA design. The obtained NSGA-II parameters were simulated using Cadence Spectre- RF simulator. The designed Low Noise Amplifier achieves a power gain of 22 dB and a minimum Noise Figure of 3 dB is achieved. It dissipates 12.5 mW of power out of 1.8 V supply
Sigma-Delta Analog to Digital ConvertersSatish Patil
In recent years Sigma-Delta ADCs became one of the most popular types of Analog-to-Digital converters. The key features of these are high-speed, high resolution and low operating voltages. These are commonly used in variety of applications like digital audio CDs, CODEC, biomedical sensor applications and wireless transmitters/receivers. The basic principles involved in this technique are oversampling and noise shaping. This report reviews different techniques proposed for high resolution, low power Sigma-Delta ADC. Conventional design of SDM was dominated by discrete time architecture but in modern designs continuous types are also becoming famous because of their low power attributes. Continuous efforts have been taken to reduce the supply voltages of SDM and recently, lowest reported is 250mv.
Design of Multiplier Less 32 Tap FIR Filter using VHDLIJMER
This Paper provide the principles of Distributed Arithmetic, and introduce it into the FIR
filters design, and then presents a 32-Tap FIR low-pass filter using Distributed Arithmetic, which save
considerable MAC blocks to decrease the circuit scale and pipeline structure is also used to increase the
system speed. The implementation of FIR filters on FPGA based on traditional method costs considerable
hardware resources, which goes against the decrease of circuit scale and the increase of system speed.
It is very well known that the FIR filter consists of Delay elements, Multipliers and Adders. Because of
usage of Multipliers in early design gives rise to 2 demerits that are:
(i) Increase in Area and
(ii) Increase in the Delay which ultimately results in low performance (Less speed).
So the Distributed Arithmetic for FIR Filter design and Implementation is provided in this work to solve
this problem. Distributed Arithmetic structure is used to increase the recourse usage and pipeline
structure is used to increase the system speed. Distributed Arithmetic can save considerable hardware
resources through using LUT to take the place of MAC units
Design of Continuous Time Multibit Sigma Delta ADC for Next Generation Wirele...IJERA Editor
This paper presents the design of CT ΣΔ modulator which can provide high DR and SNR over a 20 MHz signal bandwidth. So far all the CT SDM uses either feedback or feedforward loop filter architecture. The proposed topology is a 3rd order low-pass sigma-delta modulator, which employs a combination of feedforward and feedback schemes. Loop filter is designed as RC integrators due to its high linearity and easy interface. The design starts from system level using Matlab/Simulink. Then, the first integrator in the loop, which is the most critical block in the modulator, is implemented at transistor level using Cadence Virtuoso 180 nm CMOS technology.
International Journal of Engineering Inventions (IJEI) provides a multidisciplinary passage for researchers, managers, professionals, practitioners and students around the globe to publish high quality, peer-reviewed articles on all theoretical and empirical aspects of Engineering and Science.
Analysis of different FIR Filter Design Method in terms of Resource Utilizati...ijsrd.com
In this paper fully parallel FIR filters are designed with different design method on FPGA for resource utilization and response analysis. fully parallel band-pass FIR filters with same specification designed and simulated on ISE. The suggested implementations are synthesized with Xilinx ISE 14.2 version. Results show comparison of three different filter design methods in terms of resource utilization.
Efficient FPGA implementation of high speed digital delay for wideband beamfor...journalBEEI
In this paper, the authors present an FPGA implementation of a digital delay for beamforming applications. The digital delay is based on a Parallel Farrow Filter. Such architecture allows to reach a very high processing rate with wideband signals and it is suitable to be used with Time-Interleaved Analog to Digital Converters (TI-ADC). The proposed delay has been simulated in MATLAB, implemented on FPGA and characterized in terms of amplitude and phase response, maximum clock frequency and area.
A Simulation of Wideband CDMA System on Digital Up/Down ConvertersEditor IJMTER
In this paper, I present FPGA implementation of a digital down converter (DDC) and
digital up converter (DUC) for a single carrier WCDMA system. The DDC and DUC is complex in
nature. The implementation of DDC is simple because it does not require mixers or filters. Xilinx
System Generator and Xilinx ISE are used to develop the hardware circuit for the FPGA. Both the
circuits are verified on the Spartan - 3 FPGA
OPTIMIZATION OF CMOS 0.18 M LOW NOISE AMPLIFIER USING NSGA-II FOR UWBVLSICS Design
A design and optimization of 3-5 GHz single ended Radio Frequency (RF) Low Noise Amplifier (LNA) for ultra-wide-band (UWB) applications using standard UMC 0.18 µm CMOS technology is reported. Designing of RF circuit components is a challenging job, since even after performing lengthy calculations and finding parameter values it is less guarantee that the design performs as expected. In view of this the optimization tool; Elitist Non-Dominated Sorting Genetic Algorithm (NSGA-II); has been employed to get the optimized starting values of components in the proposed LNA design. The obtained NSGA-II parameters were simulated using Cadence Spectre- RF simulator. The designed Low Noise Amplifier achieves a power gain of 22 dB and a minimum Noise Figure of 3 dB is achieved. It dissipates 12.5 mW of power out of 1.8 V supply
First order sigma delta modulator with low-power consumption implemented in a...eSAT Journals
Abstract
This paper presents a design of a switched-capacitor discrete time 1st order Delta-Sigma modulator used for a resolution of 8 bits
Sigma-Delta analog to digital converter. For lower power consumption, the use of operational transconductance amplifier is
necessary in order to provide wide output voltage swing and moderate DC gain. Simulation results showed that with 0.35um CMOS
technology, 80 KHz signal bandwidth and oversampling rate of 64, the modulator achieved 49.25 dB Signal to Noise Ratio (SNR) and
the power consumption was 5.5 mW under ±1.5V supply voltage .
Index terms: Analog-to-Digital conversion, Delta-Sigma modulation, CMOS technology, Transconductance operational
amplifier.
FPGA Implementation of FIR Filter using Various Algorithms: A RetrospectiveIJORCS
This Paper is a review study of FPGA implementation of Finite Impulse response (FIR) with low cost and high performance. The key observation of this paper is an elaborate analysis about hardware implementations of FIR filters using different algorithm i.e., Distributed Arithmetic (DA), DA-Offset Binary Coding (DA-OBC), Common Sub-expression Elimination (CSE) and sum-of-power-of-two (SOPOT) with less resources and without affecting the performance of the original FIR Filter.
LOW POWER SI CLASS E POWER AMPLIFIER AND RF SWITCH FOR HEALTH CAREieijjournal1
This research was to design a 2.4 GHz class E Power Amplifier (PA) for health care, with 0.18um
Semiconductor Manufacturing International Corporation CMOS technology by using Cadence software.
And also RF switch was designed at cadence software with power Jazz 180nm SOI process. The ultimate
goal for such application is to reach high performance and low cost, and between high performance and
low power consumption design. This paper introduces the design of a 2.4GHz class E power amplifier and
RF switch design. PA consists of cascade stage with negative capacitance. This power amplifier can
transmit 16dBm output power to a 50Ω load. The performance of the power amplifier and switch meet the
specification requirements of the desired.
LOW POWER SI CLASS E POWER AMPLIFIER AND RF SWITCH FOR HEALTH CAREieijjournal
This research was to design a 2.4 GHz class E Power Amplifier (PA) for health care, with 0.18um
Semiconductor Manufacturing International Corporation CMOS technology by using Cadence software.
And also RF switch was designed at cadence software with power Jazz 180nm SOI process. The ultimate goal for such application is to reach high performance and low cost, and between high performance and low power consumption design. This paper introduces the design of a 2.4GHz class E power amplifier and
RF switch design. PA consists of cascade stage with negative capacitance. This power amplifier can
transmit 16dBm output power to a 50Ω load. The performance of the power amplifier and switch meet the specification requirements of the desired.
LOW POWER SI CLASS E POWER AMPLIFIER AND RF SWITCH FOR HEALTH CAREieijjournal
This research was to design a 2.4 GHz class E Power Amplifier (PA) for health care, with 0.18um
Semiconductor Manufacturing International Corporation CMOS technology by using Cadence software.
And also RF switch was designed at cadence software with power Jazz 180nm SOI process. The ultimate
goal for such application is to reach high performance and low cost, and between high performance and
low power consumption design. This paper introduces the design of a 2.4GHz class E power amplifier and
RF switch design. PA consists of cascade stage with negative capacitance. This power amplifier can
transmit 16dBm output power to a 50Ω load. The performance of the power amplifier and switch meet the
specification requirements of the desired
LOW POWER SI CLASS E POWER AMPLIFIER AND RF SWITCH FOR HEALTH CAREieijjournal
This research was to design a 2.4 GHz class E Power Amplifier (PA) for health care, with 0.18um
Semiconductor Manufacturing International Corporation CMOS technology by using Cadence software.
And also RF switch was designed at cadence software with power Jazz 180nm SOI process. The ultimate
goal for such application is to reach high performance and low cost, and between high performance and
low power consumption design. This paper introduces the design of a 2.4GHz class E power amplifier and RF switch design. PA consists of cascade stage with negative capacitance. This power amplifier can transmit 16dBm output power to a 50Ω load. The performance of the power amplifier and switch meet the specification requirements of the desired.
Low Power SI Class E Power Amplifier and Rf Switch for Health Careieijjournal1
This research was to design a 2.4 GHz class E Power Amplifier (PA) for health care, with 0.18um Semiconductor Manufacturing International Corporation CMOS technology by using Cadence software. And also RF switch was designed at cadence software with power Jazz 180nm SOI process. The ultimate goal for such application is to reach high performance and low cost, and between high performance and low power consumption design. This paper introduces the design of a 2.4GHz class E power amplifier and RF switch design. PA consists of cascade stage with negative capacitance. This power amplifier can transmit 16dBm output power to a 50Ω load. The performance of the power amplifier and switch meet the specification requirements of the desired.
This project describes a novel architecture based on Recursive Running Sum (RRS) filter implementation for wire and wireless data processing. UARTs are used for asynchronous serial data communication between remote embedded systems. If physical channel is noisy then, serial data bits get corrupted during transmission. The UART core described here, utilizes recursive running sum filter to remove noisy samples. Input data signal is directly sampled with system clock and samples are accumulated over a window size. The window size is user programmable and it should be set to one tenth of required bit period. The intermediate data bit is decoded using magnitude comparator. The advantage of this architecture is that baud rate is decided by the window size so there is no need of any external “timer module” which is normally required for standard UARTs. The Recursive Running Sum (RRS) filter architecture with programmable window size of M is designed and modules are implemented with VHDL language. This project implementation includes many applications in wireless data communication Systems like RF, Blue tooth, WIFI, ZigBee wireless sensor applications. Total coding written in VHDL language. Simulation in Modelsim Simulator, Synthesis done by XILINX ISE 9.2i. Synthesis result is verified by the Chipscope. Input signal given from the keyboard and output is seen by the help of HyperTerminal.
FPGA Implementation of Optimized CIC Filter for Sample Rate Conversion in Sof...idescitation
A software radio receiver is one which is tuned to
receive a transmitted signal on multiple communication
standards through software rather than hardware. To
incorporate multi-standard radio communications an
intermediate frequency of high ranges is used. Such high
intermediate frequencies when sampled with Nyquist rate
gets oversampled due to the phenomenon of Band Pass
sampling depending on the radio communication standard.
Hence a digital down converter (DDC) capable of reducing
the sampling rate in accordance with the radio communication
standard is required. Cascaded Integrated Comb (CIC) filters
are used for large sample rate conversion factors. In this paper
an optimized architecture for DDC employing CORDIC in
the mixer stage and the reconfigurable decimation factors for
CIC filters has been implemented. Optimized implementation
of CIC filter for sample rate conversion of multi-standard
radio communications reduces the hardware resources by more
than twenty percent when compared with the non-optimized
architecture.
Digital Implementation of Costas Loop with Carrier RecoveryIJERD Editor
Demodulator circuit is a basic building block of wireless communication. Digital implementation of
demodulator is attracting more attention for the significant advantages of digital systems than analog systems.
The carrier signal extraction is the main problem in synchronous demodulation in design of demodulator based
on Software Defined Radio. When transmitter or receiver in motion, it is difficult for demodulator to generate
carrier signal same in frequency and phase as transmitter carrier signal due to Doppler shift and Doppler rate.
Here the digital implementation of Costas loop for QPSK demodulation in continuous mode is discussed with
carrier recovery using phase locked loop.
Similar to A Novel Architecture for Different DSP Applications Using Field Programmable Gate Array (20)
TECHNICAL TRAINING MANUAL GENERAL FAMILIARIZATION COURSEDuvanRamosGarzon1
AIRCRAFT GENERAL
The Single Aisle is the most advanced family aircraft in service today, with fly-by-wire flight controls.
The A318, A319, A320 and A321 are twin-engine subsonic medium range aircraft.
The family offers a choice of engines
Immunizing Image Classifiers Against Localized Adversary Attacksgerogepatton
This paper addresses the vulnerability of deep learning models, particularly convolutional neural networks
(CNN)s, to adversarial attacks and presents a proactive training technique designed to counter them. We
introduce a novel volumization algorithm, which transforms 2D images into 3D volumetric representations.
When combined with 3D convolution and deep curriculum learning optimization (CLO), itsignificantly improves
the immunity of models against localized universal attacks by up to 40%. We evaluate our proposed approach
using contemporary CNN architectures and the modified Canadian Institute for Advanced Research (CIFAR-10
and CIFAR-100) and ImageNet Large Scale Visual Recognition Challenge (ILSVRC12) datasets, showcasing
accuracy improvements over previous techniques. The results indicate that the combination of the volumetric
input and curriculum learning holds significant promise for mitigating adversarial attacks without necessitating
adversary training.
Cosmetic shop management system project report.pdfKamal Acharya
Buying new cosmetic products is difficult. It can even be scary for those who have sensitive skin and are prone to skin trouble. The information needed to alleviate this problem is on the back of each product, but it's thought to interpret those ingredient lists unless you have a background in chemistry.
Instead of buying and hoping for the best, we can use data science to help us predict which products may be good fits for us. It includes various function programs to do the above mentioned tasks.
Data file handling has been effectively used in the program.
The automated cosmetic shop management system should deal with the automation of general workflow and administration process of the shop. The main processes of the system focus on customer's request where the system is able to search the most appropriate products and deliver it to the customers. It should help the employees to quickly identify the list of cosmetic product that have reached the minimum quantity and also keep a track of expired date for each cosmetic product. It should help the employees to find the rack number in which the product is placed.It is also Faster and more efficient way.
Courier management system project report.pdfKamal Acharya
It is now-a-days very important for the people to send or receive articles like imported furniture, electronic items, gifts, business goods and the like. People depend vastly on different transport systems which mostly use the manual way of receiving and delivering the articles. There is no way to track the articles till they are received and there is no way to let the customer know what happened in transit, once he booked some articles. In such a situation, we need a system which completely computerizes the cargo activities including time to time tracking of the articles sent. This need is fulfilled by Courier Management System software which is online software for the cargo management people that enables them to receive the goods from a source and send them to a required destination and track their status from time to time.
Final project report on grocery store management system..pdfKamal Acharya
In today’s fast-changing business environment, it’s extremely important to be able to respond to client needs in the most effective and timely manner. If your customers wish to see your business online and have instant access to your products or services.
Online Grocery Store is an e-commerce website, which retails various grocery products. This project allows viewing various products available enables registered users to purchase desired products instantly using Paytm, UPI payment processor (Instant Pay) and also can place order by using Cash on Delivery (Pay Later) option. This project provides an easy access to Administrators and Managers to view orders placed using Pay Later and Instant Pay options.
In order to develop an e-commerce website, a number of Technologies must be studied and understood. These include multi-tiered architecture, server and client-side scripting techniques, implementation technologies, programming language (such as PHP, HTML, CSS, JavaScript) and MySQL relational databases. This is a project with the objective to develop a basic website where a consumer is provided with a shopping cart website and also to know about the technologies used to develop such a website.
This document will discuss each of the underlying technologies to create and implement an e- commerce website.
Sachpazis:Terzaghi Bearing Capacity Estimation in simple terms with Calculati...Dr.Costas Sachpazis
Terzaghi's soil bearing capacity theory, developed by Karl Terzaghi, is a fundamental principle in geotechnical engineering used to determine the bearing capacity of shallow foundations. This theory provides a method to calculate the ultimate bearing capacity of soil, which is the maximum load per unit area that the soil can support without undergoing shear failure. The Calculation HTML Code included.
Hybrid optimization of pumped hydro system and solar- Engr. Abdul-Azeez.pdffxintegritypublishin
Advancements in technology unveil a myriad of electrical and electronic breakthroughs geared towards efficiently harnessing limited resources to meet human energy demands. The optimization of hybrid solar PV panels and pumped hydro energy supply systems plays a pivotal role in utilizing natural resources effectively. This initiative not only benefits humanity but also fosters environmental sustainability. The study investigated the design optimization of these hybrid systems, focusing on understanding solar radiation patterns, identifying geographical influences on solar radiation, formulating a mathematical model for system optimization, and determining the optimal configuration of PV panels and pumped hydro storage. Through a comparative analysis approach and eight weeks of data collection, the study addressed key research questions related to solar radiation patterns and optimal system design. The findings highlighted regions with heightened solar radiation levels, showcasing substantial potential for power generation and emphasizing the system's efficiency. Optimizing system design significantly boosted power generation, promoted renewable energy utilization, and enhanced energy storage capacity. The study underscored the benefits of optimizing hybrid solar PV panels and pumped hydro energy supply systems for sustainable energy usage. Optimizing the design of solar PV panels and pumped hydro energy supply systems as examined across diverse climatic conditions in a developing country, not only enhances power generation but also improves the integration of renewable energy sources and boosts energy storage capacities, particularly beneficial for less economically prosperous regions. Additionally, the study provides valuable insights for advancing energy research in economically viable areas. Recommendations included conducting site-specific assessments, utilizing advanced modeling tools, implementing regular maintenance protocols, and enhancing communication among system components.
Vaccine management system project report documentation..pdfKamal Acharya
The Division of Vaccine and Immunization is facing increasing difficulty monitoring vaccines and other commodities distribution once they have been distributed from the national stores. With the introduction of new vaccines, more challenges have been anticipated with this additions posing serious threat to the already over strained vaccine supply chain system in Kenya.
Forklift Classes Overview by Intella PartsIntella Parts
Discover the different forklift classes and their specific applications. Learn how to choose the right forklift for your needs to ensure safety, efficiency, and compliance in your operations.
For more technical information, visit our website https://intellaparts.com
Industrial Training at Shahjalal Fertilizer Company Limited (SFCL)MdTanvirMahtab2
This presentation is about the working procedure of Shahjalal Fertilizer Company Limited (SFCL). A Govt. owned Company of Bangladesh Chemical Industries Corporation under Ministry of Industries.
Event Management System Vb Net Project Report.pdfKamal Acharya
In present era, the scopes of information technology growing with a very fast .We do not see any are untouched from this industry. The scope of information technology has become wider includes: Business and industry. Household Business, Communication, Education, Entertainment, Science, Medicine, Engineering, Distance Learning, Weather Forecasting. Carrier Searching and so on.
My project named “Event Management System” is software that store and maintained all events coordinated in college. It also helpful to print related reports. My project will help to record the events coordinated by faculties with their Name, Event subject, date & details in an efficient & effective ways.
In my system we have to make a system by which a user can record all events coordinated by a particular faculty. In our proposed system some more featured are added which differs it from the existing system such as security.
A Novel Architecture for Different DSP Applications Using Field Programmable Gate Array
1. International Journal of Microelectronics Engineering (IJME), Vol.2, No.2, April 2016
DOI: 10.5121/ijme.2016.2202 9
A Novel Architecture for Different DSP
Applications Using Field Programmable
Gate Array
Arindam Biswas, Sankalpa Kumar, Tamal Dutta,
Swati Bhaumik and Rounak Das
Department of Electrical and Electronics Engineering, Neotia Institute of
Technology, Management and Science, Jhinga, West Bengal, India
ABSTRACT
This paper presents a reconfigurable processor for different digital signal processing applications. The
performance of the proposed architecture has been evaluated by taking different dsp applications like Low
pass filter, high pass filter, finite impulse response (FIR) filter and FFT module. We designed the
architecture of the processor and realizing the architecture using adder, multiplier, delay unit and validate
it in the FPGA, which show that the hardware scheme is feasible for practical application. The
experimental results clearly reveal the novelty of the architecture for dsp applications. This paper
investigates the potential use of FPGAs for implementing efficient “Reconfigurable Processor” for
different dsp applications. The proposed processor is based on parallel re-configurable which is
implemented on FPGA. FPGAs have become an important component for implementing these functions
with respect to cost, performance and flexibility. The general purpose SPARTAN 3AN FPGA kit has been
employed for developing reconfigurable processor, with all the coding done using the hardware description
language VERILOG.
KEYWORDS
Field programmable gate array (FPGA), reconfigurable architecture, digital signal processor (DSP),
application specific integrated circuit (ASIC), basic building block (BBU), functional unit (FU), system on
chip (SOC), configurable logic block (CLB), look up
1. INTRODUCTION
An FPGA architecture makes an application of programmable logic easier and more convenient.
FPGA architecture has a dramatic effect on the quality of the final device’s speed performance,
area efficiency, and power consumption. [2].Modern day’s digital signal processing (DSP) and its
applications have become more complex owing to the fact that more and more numbers of datas
or signals or user inputs are needed to be screened, processed; also simultaneously needed to be
fetched as output. The need of a modern day separate processor is imperative as it’s more
efficient from regulatory perspective.DSP functions [3],[4] are computationally intensive and
exhibit spatial [5], [6] parallelism, temporal [7] parallelism or both. Although Even though higher
performance achievement, relatively lower cost and low power dissipation are the major
advantages of ASICs, high degree of inflexibility restricts their usage for rapidly changed
scenario in the current high end applications as mentioned above. Convenient and well versed
mapping is one of the major aspects behind huge popularity of FPGA against ASIC. On the first
section of this project, the adopted DSP theorems have been explained rigorously. On the next
section, applications of those DSP theorems and their reconfigurable algorithms are duly mapped
using map theory (union) and final element has been produced. Section- II of the paper describes
different DSP functions (like FIR, FFT, LPF, HPF.) in the proposed architecture and their
implementation. Section-III of the paper describes the detailed representation of “Reconfigurable
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Architecture”. Section-III of the paper describes FPGA implementation of the proposed
architecture. Section-V analyzes the performance with various simulations, implementation and
comparison results and Section- VI concludes the paper.
2. DIFFERENT DSP FUNCTIONS AND PROPOSED
IMPLEMENTATION
2.1. Fast Fourier Transform:
A fast Fourier transform is used to calculate the discrete Fourier transform (DFT) of a sequence,
suitable for real time applications. Fourier analysis as is known, converts the input signal from
discrete time domain to a representation in the frequency domain. Fast Fourier Transform is
basically an algorithm for reducing the complexity of calculation in Discrete Fourier Transform
(DFT). Although there have been many different FFT algorithms as per different decimation
tactics; a simple complex-number computational algorithm has been described here, in adequate
of their general properties. The basic building block of FFT are multiplier, adder, subtractor etc.
Fig. 1 Schematic diagram of a 4 point FFT
2.2. Finite Impulse Response (FIR)
A finite impulse response (FIR) filter is a filter whose impulse response is of finite duration,
because it settles to zero in finite time. For a causal discrete-time FIR filter of order N, each value
of the output sequence is a weighted sum of the most recent input values. The figure2 shows 4bits
FIR implementation using look up tables (LUTs).The basic building blocks of FIR are adders,
multipliers etc .
Fig.2: Circuit diagram of FIR
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2.3 Filters
Signal in use are generally contains harmonics, and other types of unwanted components. Before
employing it to a system we need to eliminate these components for proper processing operation.
These noise signals are eliminated using filter circuits. Depending on the zone of operation filters
can be of many types like high pass, low pass, band pass, band reject etc
(A)Low Pass Filter:
It works on the principle of frequency range variation. Basically if the input signal contains some
components having higher frequency than the cutoff frequency then this filter eliminates those
components.
Fig.3 inductive lows pass filter circuit
Here fig 3 is the low pass filter using capacitor, fig (ii) is the low pass filter using inductor. Both
of these circuits can be used for implementing low pass filter using direct active elements, but in
case of integrated circuit inductor can`t be fabricated therefore in later discussion capacitor circuit
is only considered.
We know the reactance of capacitor is x= where,
x= reactance w=angular frequency of signal C=capacitance f = frequency of signal
from the equation, impedance increase with the increase of frequency(as we know w ∞f)
therefore as the frequency increases circuit blocks the signal, hence the circuit blocks all the noise
signals having higher frequency than cut off
.
Cutoff frequency: We know fc=
Where, fc =cutoff frequency
R= total resistance of circuit
C= capacitance
Hence by choosing proper value of R and C, any cut off frequency can be applied to the filter.
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Calculation for Digital Low pass Filter:
Fig.4: Circuit diagram of low pass filter
In the circuit,
Vin= input voltage ; Vout=output voltage;
R=Resistance; C=capacitance
Now, Using KVL we have
Vin(s)=I(s)*R+ …………………………………..(i)
Vout(s) = …………………..……………………..(ii)
Now dividing equationn.i by equation.ii, we have,
= ( ) / (R+ ) ………………….....( iii)
Putting the value of S = (2/T)*( ) from bilinear transformation, We have H(Z)=
H(Z)=
H(Z) =
H(Z) =
= (Z+ 1) /( )
Z m y(Z) + n y(Z) = Z x(Z) +X(Z)
m y(Z) + n y(Z) = x(Z) + x(Z)
m y(n) + n y(n-1)= x(n)+ x(n-1)
y(n)=
H(z)= ; y(n)=output ; x(n)= input
X (Z) &Y(Z) are Z transform of x(n)&y(n) respectively.
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Fig:5 Digital Low pass filter circuit
Here, ‘in’ is input sequence to the system, ‘out’ is output sequence generated by system, ‘m’ and
‘n’ are the terms dependent of circuit resistance and capacitance.
B) Highpass Filter:
In this filter all the signal components having lower frequency than the given cutoff frequency are
eliminated. Therefore if any system required to pass only certain amount of frequency then a high
pass filter can be applied before the system.
Fig:6 Capacitive high pass filter circuit
Fig.7 Inductive high pass filter circuit
As the inductor circuit is not implementable in integrated circuit, here capacitive circuit is
considered only. We know for a capacitor, reactance decreases with the increase of frequency, as
f ∞ w ∞ (1/x); Where x is the reactance, f and w are frequency and angular frequency of the
sequence. Now impedance Z.Therefore the output voltage across the resistance is Vout. Now as,
with increase of f, x decreases therefore Z also decreases, so Vout increases. Hence for low
frequency the circuit will show output tending to zero but for a frequency more than cutoff
frequency, system will provide respective output value.
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Calculation for Digital High pass Filter:
Fig 8.Circuit diagram of high pass filter
In the circuit,
Vin= input voltage; Vout=output voltage;
R=Resistance; C=capacitance
Applying K.V.L,
Vin(S) = * I(s) +R*I(s)…………..……………….(i)
Vout(s) = R*I(s) ……………………………………(ii)
Therefore,
H(s) = ……………………................... (iii)
H(s) =
H(s)=
Putting S=(2/T)* ,
H(Z)=
H(Z)= [let, P= ]
H(Z)=
H(Z)= [let, a=P+1, b=P-1]
Let, Y=Vout, X=Vin
(Y(z)/X(z))=
(Za+b)Y(z)=(z-1)X(z)
ZaY(z)+bY(z)=zX(z)-X(z)
ZaY(z) =zX(z)-X(z)- bY(z)
aY(z) =X(z)-Z-1
X(z)- b Z-1
Y(z)
Y(n)=
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Fig:9 Digital High pass filter circuit
Here pulse generator works as input and scope is taken to display output.
3. Proposed Reconfigurable Architecture:
The proposed reconfigurable architecture is the combination of all the architectures of single
element DSP modules. The computing architecture and software model is flexible enough from
the perspective of data path and logic pathway. The reconfigurable design adds to the uses of
control flow. The proposed architecture has been obtained using union theorem of graph theory,
where optimum numbers of electronic components (adders, subtractors, multipliers, delay
circuits) and switching devices (multiplexer, demultiplexer) have been accounted for.The
architecture is such that different configurations can be processed at a time and outputs can be
checked one by one.The Table1 shows the control signals for multiplexers to achieve a particular
dsp applications. The Primitives have been chosen in such a fashion that a particular dsp
application can be made by connecting these primitives in an appropriate fashion [10]. A number
of switches (Multiplexer) are required to maintain the interconnections among the primitives for
implementing the applications. The architecture was validated in the FPGA. The FPGA
architecture is specified by its hardware description language (HDL), similar to that used for an
application-specific integrated circuit (ASIC) [11]. FPGAs of recent make have large resources
of logic gates and RAM blocks to implement complex digital computations. As FPGA designs
employ very fast I/O devices and bidirectional data buses, it becomes a challenging task to verify
correct timing of valid data within the setup and the hold time. Floor planning enables resources
allocation within FPGA to meet these time constraints [12–15]. The main advantage of proposed
architecture is to perform different control systems applications by generating different control
signals of these switches.
CONTROL
BLOCKS
DM1(S6)
(1:4 DE
MUX)
DM2(S7)
(1:2 DE
MUX)
DM3(S8)
(1:2 DE
MUX)
DM4(S9)
(1:2 DE
MUX)
M1(S1) M2(S2) M3(S3) M4(S4) M5(S5)
FIR 00 0 - 0 0 0 - 1 1
LPF 01 1 0 1 1 1 0 0 0
HPF 10 - 1 1 - - 1 0 0
FFT 11 - - - - - - - -
Table1: Control Signals for Reconfigurable Architecture
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Table2 shows that how many fundamental units (adder, multiplier, delay units etc), different
switches like multiplexers and demultiplexers will be required to achieve different dsp
applications.
Table2: Basic Building Blocks for DSP Functions:
Fig10. Reconfigurable Architecture with BBU
Fig.11. Reconfigurable Architecture using Fus
Function Multiplier Delay Adder Subtractor Multiplexer
(2:1)
De-
multiplexer
(4:1) (2:1)
FIR 4 3 3 - 4 1 1
LPF 2 2 1 1 7 1 1
HPF 2 2 - 2 4 1 1
FFT - - - - - 1 -
Combined 4 3 3 2 7 1 1
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Function Multiplier Registers Adder Subtractor LUTs
FIR 16 - 18 18 356
LPF 2 8 3 3 19
HPF 2 8 4 4 16
FFT 4 - 12 12 70
Reconfigurable
Architecture
4 12 7 6 40
Table 3: Synthesis Report
4. FPGA IMPLEMENTATION
This section describes the design, implementation, and verification of the proposed
reconfigurable architecture on an FPGA platform.
4.1 Design and Implementation:
In the design stage, the FPGA spartan3AN, with a 50-MHz clock is adopted as the FPGA
hardware platform. As the proposed architecture is realized digitally, for that we have realized
individual blocks using functional units (Adder, Multiplier, Delay units). It is evident, that a
particular dsp application can be achieved by providing appropriate control signal to the control
units of the multiplexer. Implementing different dsp applications we are following certain steps.
First identify the BBS and then place them in appropriate positions and then replace the BBBs
with FUs and connect them through switches. Data routing from output of one FU to inputs of
one or more FUs can be achieved by providing appropriate control signals to the switches. Thus
by changing control signals of these switches, different dsp applications can be established. As
the FPGA kit SPARTAN 3AN contains 8 switches for inputs, 4-bit operation is done. Switches
are being used as follows: Input to the FPGA chip for the present applications are clock and reset
discrete signals. The main output is another signal. The FPGA device utilization details for the
different BBUs are shown in HDL synthesis report.
5. ANALYSIS
It is evident that the hardware requirement is reduced. This is due to the fact that LUTs used in
the FPGAs are totally replaced by the BBS like multiplier, adder etc, in the proposed architecture
so, power requirement is decreased, and hardware complexity is reduced, and speed which is
closed to ASIC. Figure 3 shows the hardware comparison of
Fig.13.Hardware Comparison of Different DSP Applications
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6. CONCLUSIONS
This study proposes the hardware implemented of reconfigurable processor for different dsp
applications and validate it in the FPGA which has the merits in term of fast speed, cost, power
consumption and flexibility. The experimental results reveal that these FPGAs can offer the cost
effective solution because of the availability of basic DSP building blocks like multipliers, adders
and MAC units. Hence, the higher performance of the FPGAs compared to conventional DSP
processors is achieved. Here a new architecture “Reconfigurable dsp Processor” is introduced
which is software controlled hardware implemented using SPARTAN3AN FPGA kit. FPGAs
provide an affordable, customised option for testing the performance of new architecture. The
prototype has been developed to evaluate the performance of the proposed logic in real-time.
However, it is worth investigating the cost complexity analysis of the architecture if the basic
building blocks like adders/ subtractors, multipliers can be represented by other number system
i.e DBNS, RNS etc. Future work includes a VLSI implementation of the proposed architecture.
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