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检索条件"主题词=signal processing algorithms"

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The Random Point Processes In The Tasks Of Optical signal processing

The Random Point Processes In The Tasks Of Optical Signal Pr...

引用

International Symposium on Surface Waves in Solid and Layered Structures, and National Conference on Acoustoelectronics

作者： V.I. Khimenko Saint Petersburg State Academy of AeroSpace Instrumentation Saint Petersburg Russia

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VLSI system compiler for digital signal processing: modularization and synchronization

VLSI system compiler for digital signal processing: modulari...

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IEEE International Symposium on Circuits and Systems (ISCAS)

作者： K. Itoh H. Kunieda Department of Electrical and Electronic Engineering Tokyo Institute of Technology Tokyo Japan

An overview is presented of a VLSI system compiler which generates highly parallel and fast processor array on a VLSI chip for general digital signal processing algorithms. In line with this overview, a description is given of a modularization and a synchronization of general digital signal processing algorithms which convert them into suitable forms for implementation by a processor array on a VLSI chip.< >

关键词： Very large scale integration Digital signal processing signal processing algorithms Digital signal processing chips Systolic arrays Parallel processing Transfer functions Frequency signal generators Routing

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Applications of Performance Benchmarking to the Development of signal processing Systems Based on Personal Computer Technology

Applications of Performance Benchmarking to the Development ...

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Canadian Conference on Electrical and Computer Engineering (CCECE)

作者： Robert Inkol Collin Wilson Mathieu Eidus Department ofNational Defence DRDC-Ottawa Ottawa ONT Canada Vantage Point International Ottawa ONT Canada

Highly optimized libraries of vector and matrix math functions, such as the Intel integrated performance primitive (IPP) libraries, can be used to quickly and economically construct high performance signal processing systems built up around personal computer technology. This paper describes a portable benchmarking software suite that has been developed for benchmarking the performance obtainable with IPP implementations of common signal processing algorithms, including the fast Fourier transform (FFT) and finite impulse response (FIR) filter. The results presented provide useful insights into system design choices concerning algorithms, software architecture and processors

关键词： Application software signal processing Microcomputers signal processing algorithms Software libraries Finite impulse response filter Software performance Fast Fourier transforms Software algorithms Software architecture

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Application of Hybrid signal processing Technique in Protection of Series Compensated Transmission Line

Application of Hybrid Signal Processing Technique in Protect...

引用

Communication, Computing and Industry 4.0 (C2I4), International Conference on

作者： Abhishek Gupta Ramesh Kumar Pachar Department of Electrical Engineering Swami Keshvanand Institute of Technology Management and Gramothan Jaipur India

ISBN: (数字)9781665474979

ISBN: (纸本)9781665474986

As electricity demand increases day-by-day, power engineers strive to generate and transmit as much power as possible via the preinstalled transmission lines. Series compensation have become popular option in long transmission lines worldwide as it increases the transmission capacity of the system. But due to the use of series compensation (capacitors), transmission line protection becomes complex due to various changes in the line parameters, looking from the point of relay installation such as change in impedance, current and voltage inversion. Existing protection concepts will have to be modified to accommodate these issues. A protection algorithm (PA) based on three signal processing techniques is proposed in this paper for identification and categorization of faults in series compensated electrical transmission network. Study has been done and validated on MATLAB/Simulink environment.

关键词： Power transmission lines Power system protection signal processing algorithms Voltage signal processing Telecommunication computing Fourth Industrial Revolution

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A flexible readout electronics for CZT arrays with real time digital signal processing

A flexible readout electronics for CZT arrays with real time...

引用

2007 IEEE Nuclear Science Symposium Conference, vol.2

作者： Michela C. A. Uslenghi Mauro Fiorini Serena Monti Egidio M. Quadrini Monica Alderighi Fabio Casini Sergio D'Angelo Marcello Mancini Matteo Sassi Paolo Bastia INAF IASF National Institute for Astrophysics Italy National Institute for Astrophysics INAF/IASF sez Milano Italy National Institute for Astrophysics INAF/IASF sez.Milano 20133 Italy Physics Department of the Milano University Italy Thales Alenia Space Italy Thales Alenia Space Italia S.p.A.

In the framework of an on-going R&D program on CZT detectors for astrophysical applications, we have started a study to address peculiar problems affecting this kind of detectors (e.g. response dependent on the interaction depth and multiple hit events) using a digital approach: the output of an analog front end chain based on a fast charge preamplifier, which preserves the shape of the signal as generated by the detector, sampled with a fast ADC, is processed to extract information to improve the performance, in particular the energy resolution. In this context, we have developed a flexible readout electronics to be used to characterize CZT array and test digital processing algorithms. The system includes analog front-end electronics, digital signal processing based on an FPGA board, and a Gb Ethernet interface for PC-based data acquisition. Current scheme allows the readout of a 4×4 pixels, which allows us to test the algorithms even for multi-pixels events and checking cross-talk effects. However, the system has been designed to be easily extended to an higher number of pixels by duplicating the Analog Front End board. Up to 4 AFEE boards can be managed by the system (thus supporting 64 channels, allowing a 16×16 array to be readout). Performance of the system with a commercial 4×4 pixels CZT (eV-products) will be reported in the paper.

关键词： Readout electronics Digital signal processing Event detection Detectors Electronic equipment testing signal processing algorithms Preamplifiers Shape signal processing signal generators

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Concurrent programming method for digital signal processing

Concurrent programming method for digital signal processing

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International Symposium on Intelligent Systems and Informatics (SISY)

作者： Anita Sabo Norbert Schramm Polytechnical Engineering College Subotica Serbia Inovacioni Centar D. O. O. Subotica Serbia

The task of programming concurrent systems is substantially more difficult than the task of programming sequential systems with respect to both correctness and efficiency. The tendency in development of embedded, DSP systems and processors are shifting to multi core and multiprocessor setups as well. The problem of easy concurrency and algorithm development is an important for embedded and DSP systems as well. The goal of this paper is to define and present a high level language that allows description and development of signal processing algorithms. With the usage of a domain specific language, we can create compact and easy to understand definition of algorithms. In the paper the authors present the advantages granted by DSL for DSP applications. The created definitions are hardware independent can be executed and functionally verified. Efficient code can be generated for various targets without porting. The design of the presented DSL allows code generation for multi-core targets in case of computing-intensive algorithms, code generation for multiple streams, threads. Code reuse is supported by merging, re-grouping, and splitting of algorithms and groups of algorithms.

关键词： Digital signal processing signal processing algorithms DSL Concurrent computing High level languages Domain specific languages Hardware Algorithm design and analysis Yarn Merging

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Second generation switched-current signal processing

Second generation switched-current signal processing

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IEEE International Symposium on Circuits and Systems (ISCAS)

作者： J.B. Hughes I.C. Macbeth D.M. Pattullo Philips Research Laboratories Redhill UK

A switched-current integrator configuration with greatly improved sensitivity to transistor mismatch is described. Forward-Euler, backward-Euler, and bilinear-z mappings are described, as well as an integrator which responds to the derivative of the input current. An universal integrator configuration which performs an identical algorithm to a well-known switched-capacitor universal integrator is developed. It can be used to translate known switched-capacitor filter topologies into switched-current counterparts, as is demonstrated by the simulation of a sixth-order low-pass filter.< >

关键词： signal generators signal processing Switches Delay signal processing algorithms Voltage Cutoff frequency Low pass filters Switching circuits MOSFETs

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Design and implementation of a new approach of LFMCW radar signal processing based on compressive sensing in azimuth direction

Design and implementation of a new approach of LFMCW radar s...

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IEEE National Conference on Radar

作者： Sameh G. Salem Fathy M. Ahmed Mamdouh H. Ibrahim Abdel Rahman H. Elbardawiny Saad Elgayar Military Technical College Cairo Egypt Military Technical College Cairo EG Department of Electrical and Computer Engineering The Ohio State University Columbus Ohio

ISBN: (纸本)9781509008643

Application of Compressive Sensing (CS) in Linear Frequency Modulation Continuous Wave (LFMCW) radar had been investigated and proved by the authors in [8]. An approach, namely architecture 1, had been evaluated by the authors in [11] which dependent mainly on applying CS in range direction. But there is a limitation on the number of the detected targets in range. So, in the present paper, a new approach for applying CS in LFMCW radar signal processing, namely architecture 2, is introduced depends on apply CS in azimuth direction (range sweeps). The reduction in range sweeps is performed using a Pseudo Random (PN) sequence in Azimuth according to the required reduction ratio in range sweeps. The information of the received radar signal (target range and speed) are reconstructed by the use of Complex Approximate Message Passing (CAMP) reconstruction algorithm. Performance of the proposed LFMCW radar signal processors based on CS (architecture2) is evaluated and compared to that of both the traditional one based on Fast Fourier Transform (FFT)) and architecture 1 from points of view of detection performance through Receiver Operating Characteristics (ROC) curves, resolution performance and hardware complexity. The proposed approach (architecture 2) is designed and implemented using Field Programmable Gate Array (FPGA).

关键词： Radar Radar signal processing Computer architecture Program processors Sparse matrices Azimuth signal processing algorithms

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signal processing in antenna arrays when using "supersolution" algorithm

Signal processing in antenna arrays when using "supersolutio...

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International Conference on Antenna Theory and Techniques

作者： D.D. Gabriel'an M.Yu. Zvezdina Y.A. Zvezdina O.S. Labunko Rostov Mil. Inst. of Missile Corps Rostov-on-Don Russia Rostov Military Institute of Missile Corps Rostov-on-Don Russia Southern Russia Federal Okrug Radio Frequency Centre Rostov-on-Don Russia

The algorithm of constructing of weight coefficients that guarantees receiving the source signal getting into the main maximum of directive pattern and suppressing other sources signals is investigated. Basing on the analytic form of the inverse covariance matrix for signals the estimations of the possible meanings of the signal/noise relation depending on the parameters of antenna system and signals (number and step of radiator displacement, receiving signals covariance degree) are found. The results of mathematical modelling of signal processing based on the algorithm are given.

关键词： signal processing algorithms Array signal processing Antenna arrays Directive antennas Covariance matrix Receiving antennas signal analysis Radar signal processing signal processing Antenna theory

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An efficient methodology and semi-automated flow for design and validation of complex digital signal processing ASICS macro-cells

An efficient methodology and semi-automated flow for design ...

引用

International Workshop on Rapid System Prototyping (RSP)

作者： L. Tambour N. Zergainoh P. Urard H. Michel A.A. Jerraya TIMA Laboratory Grenoble France STMicroelectronics Crolles France

We present a methodology and design flow for signal processing application specific integrated circuit macro-cells. The key features of the methodology are the mastering the complexity of design, the increasing of reuse factor and the early error detection. It takes advantages of a derivative designs, a signal processing modularity, generic modeling and combines both levels of abstraction, in order to produce an efficient architecture. The flow includes a fast verification platform that drives both algorithm and architecture validation in an efficient way. We illustrate the effectiveness of the proposed methodology by a significant industrial application. Experimental design results indicate strong advantages of the proposed schemes.

关键词： signal design Digital signal processing Application specific integrated circuits signal processing algorithms Algorithm design and analysis Design methodology Testing High level synthesis Hardware Laboratories

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