Download or read book Development of Parallel Architectures for Sensor Array Processing Volume 2 A Parallel Architecture for Broad Band Direction Of Arrival Estimation written by M. M. Jamali and published by . This book was released on 1993 with total page 138 pages. Available in PDF, EPUB and Kindle. Book excerpt: One of today's problems in signal processing is the identification of direction-of-arrival (DOA) for multiple broad-band sources. Many algorithms have been proposed in the literature, however, the algorithms are highly complex and require a lot of computing power. New technologies in the past two decades have decreased the cost of digital hardware, and its speed has increased to such an extent that digital signal processing has replaced a great deal of analog signal processing. This thesis presents a digital-domain parallel-pipelined architecture capable of computing the DOA of multiple broad-band sources in real-time. Broad-Band Signal-Subspace Spatial-Spectrum (BASS-ALE) Estimation algorithm has been selected for DOA estimation and has been simulated and verified through computer software programs. The BASS-ALE algorithm has been modified and parallelized. The parallel algorithm has been mapped on an architecture which is suitable for real-time computation.
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1994 with total page 568 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Development of Parallel Architectures for Sensor Array Processing Algorithms written by and published by . This book was released on 1991 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt: The high resolution direction of arrival (DOA) estimation has been an important area of research for a number of years. Many researchers have developed a variety of algorithms to estimate the direction of arrival. Another important aspect of the DOA estimation area is the development of high speed hardware capable of computing the DOA in real time. In this research we have first focussed on the development of parallel architecture for multiple signal classification (MUSIC) and estimation os signal parameters by rotational invariance technique (ESPRIT) algorithms for the narrow band sources. These algorithms are substituted with computationally efficient modules and converted to pipelined and parallel algorithms. For example one important computation of eigendecomposition of the covariance matrix has been performed using Householders transformations and QR method.
Download or read book Development of Parallel Architectures for Sensor Array Processing written by and published by . This book was released on 1993 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt: The high resolution direction-of-arrival (DOA) estimation is important in many sensor systems. It is based on the processing of the received signal and extracting the desired parameters of the DOA of plane waves. Many approaches have been used for the purpose of implementing the function required for the DOA estimation. The Multiple Signal Classification (MUSIC) and the Estimation of Signal Parameters by Rotational Invariance techniques (ESPRIT) algorithms are two novel approaches used recently to provide asymptotically unbiased and efficient estimates of the DOA. They are believed to be promising and appropriate for hardware implementation for real time applications. They estimate the so called signal subspace from the array measurements. The parameters of interest (i.e. determining of the DOA) are then estimated from the intersection between the array manifold and the estimated subspace.
Download or read book Government Reports Annual Index written by and published by . This book was released on 1994 with total page 1374 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Government Reports Announcements Index written by and published by . This book was released on 1994 with total page 644 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Parallel Architecture for Broad band Direction of arrival Estimation written by Raja F. Tabar and published by . This book was released on 1993 with total page 258 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Engineering Index Annual written by and published by . This book was released on 1992 with total page 2264 pages. Available in PDF, EPUB and Kindle. Book excerpt: Since its creation in 1884, Engineering Index has covered virtually every major engineering innovation from around the world. It serves as the historical record of virtually every major engineering innovation of the 20th century. Recent content is a vital resource for current awareness, new production information, technological forecasting and competitive intelligence. The world?s most comprehensive interdisciplinary engineering database, Engineering Index contains over 10.7 million records. Each year, over 500,000 new abstracts are added from over 5,000 scholarly journals, trade magazines, and conference proceedings. Coverage spans over 175 engineering disciplines from over 80 countries. Updated weekly.
Download or read book Winter Waterfront Year round Use in Metropolitan Toronto written by Xenia Klinger and published by . This book was released on 1991 with total page 79 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Development of Parallel Architectures for Radar video Signal Processing Applications written by Amin Jarrah and published by . This book was released on 2014 with total page 245 pages. Available in PDF, EPUB and Kindle. Book excerpt: The applications of digital signal processing continue to expand and use in many different areas such as signal processing, radar tracking, image processing, medical imaging, video broadcasting, and control algorithms for sensor array processing. Most of the signal processing applications are intensive and may not achieve the real time requirements. However, the Multi-core phenomenon has been embraced by almost all processor manufacturers and the road to the future is through parallel processing. Now we have many parallel processing platforms that developed for high performance such as: 1) Multi-Core/Many-Cores 2) Graphic Processing Units (GPU) 3) Field Programmable Gate Arrays (FPGA) This research work involves developing optimized parallel architectures of many signal processing applications such as Extensive Cancellation Algorithm (ECA), Direct Data Domain (D3), Block Compressive Sampling Matching Pursuit algorithm (BCoSaMP), video processing, Discrete Wavelet Transform (DWT), Particle Filter (PF), and Iterative Hard Thresholding (IHT) on different platforms such as Multi-core, FPGA and GPU. This is performed by exploring opportunities of any computation and storage that can be eliminated to achieve high performance and meet its real time requirements. Different techniques and ideas have also been derived from different advanced fields to increase the intelligibility and the usefulness of our research. A new innovative generalized method is proposed which can be very helpful for many researchers in various areas. Then, the applications have been moved higher ordering through implementing interfaces. This makes it adaptable by specifying all the input parameters of a certain application and fast prototyping through different performance evaluations. We propose and exploit many parallelization methods and optimization techniques in order to improve the latency, hardware usage, power consumption, cost, and reliability. These parallelization methods predict the data path and the control unit of the application processes. Also, the applications examine into numerical algorithms approaches to provide a transition from the research theory to the practice and to enhance the computational and resource requirements by adapting the certain algorithm for high performance applications. We exploit techniques coupled with high level synthesis tools by enabling rapid development to generate efficient parallel codes from high-level problem descriptions. This will reduce the design time, increase the productivity, improve the reliability, and enable exploration of the design space. Approaches will include optimizations based on mathematical and/or statistical reasoning, set theory, logic, and auto-tuning techniques. Hardware software co-design for these applications has been performed that pushes performance and energy efficiency while reducing cost, area, and overhead. This has been accomplished by developing a tool called Radar Signal Processing Tool (RSPT). RSPT allows the designer to auto-generate fully optimized VHDL representation of any of these signal processing algorithms by specifying many user input parameters through Graphic User Interface (GUI). This will offer great flexibility in designing signal processing applications for a System on Chip (SoC) without having to write a single line of VHDL code. RSPT also communicates with Xilinx toolset to check for the available FPGA parts installed with the Xilinx toolset and for executing the VHDL synthesis command chain. Moreover, it utilizes optimization techniques such as pipelining, code in-lining, loop unrolling, loops merging, and dataflow techniques by allowing the concurrent execution of operations to improve throughput and latency. Finally, RSPT provides the designer a feedback on various performance parameters such as occupied slices, maximum frequency, and dynamic range. This offers the designer the ability to make any adjustments to the algorithm component until the desired performance of the overall SoC is achieved. Parallel approach of IR Video processing is also proposed as it widely used in many numerous processing applications and not achieve the real time requirements. Analysis and assessment of the energy dissipation for heterogeneous Network on Chip (NoC) based Multiprocessor System on Chip (MPSoC) platform running a video application are performed. It identifies the latency, area, and energy bottlenecks of the entire heterogeneous platform including processors, interconnection wires, routers, memory, and caches etc. Also, we propose a new modeling and simulation approach regarding the channel width and buffer sizing which have a strong impact on the performance and the overhead of the chip. This approach monitors the state of each link in the NoC topology. Then, based on the congestion spot and the critical path we can optimize the design by changing channel width and buffer size until achieving the desired performance.
Download or read book Programming Massively Parallel Processors written by David B. Kirk and published by Newnes. This book was released on 2012-12-31 with total page 519 pages. Available in PDF, EPUB and Kindle. Book excerpt: Programming Massively Parallel Processors: A Hands-on Approach, Second Edition, teaches students how to program massively parallel processors. It offers a detailed discussion of various techniques for constructing parallel programs. Case studies are used to demonstrate the development process, which begins with computational thinking and ends with effective and efficient parallel programs. This guide shows both student and professional alike the basic concepts of parallel programming and GPU architecture. Topics of performance, floating-point format, parallel patterns, and dynamic parallelism are covered in depth. This revised edition contains more parallel programming examples, commonly-used libraries such as Thrust, and explanations of the latest tools. It also provides new coverage of CUDA 5.0, improved performance, enhanced development tools, increased hardware support, and more; increased coverage of related technology, OpenCL and new material on algorithm patterns, GPU clusters, host programming, and data parallelism; and two new case studies (on MRI reconstruction and molecular visualization) that explore the latest applications of CUDA and GPUs for scientific research and high-performance computing. This book should be a valuable resource for advanced students, software engineers, programmers, and hardware engineers. New coverage of CUDA 5.0, improved performance, enhanced development tools, increased hardware support, and more Increased coverage of related technology, OpenCL and new material on algorithm patterns, GPU clusters, host programming, and data parallelism Two new case studies (on MRI reconstruction and molecular visualization) explore the latest applications of CUDA and GPUs for scientific research and high-performance computing
Download or read book Parallel Algorithms and Architectures for DSP Applications written by Magdy A. Bayoumi and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 289 pages. Available in PDF, EPUB and Kindle. Book excerpt: Over the past few years, the demand for high speed Digital Signal Proces sing (DSP) has increased dramatically. New applications in real-time image processing, satellite communications, radar signal processing, pattern recogni tion, and real-time signal detection and estimation require major improvements at several levels; algorithmic, architectural, and implementation. These perfor mance requirements can be achieved by employing parallel processing at all levels. Very Large Scale Integration (VLSI) technology supports and provides a good avenue for parallelism. Parallelism offers efficient sohitions to several problems which can arise in VLSI DSP architectures such as: 1. Intermediate data communication and routing: several DSP algorithms, such as FFT, involve excessive data routing and reordering. Parallelism is an efficient mechanism to minimize the silicon cost and speed up the pro cessing time of the intermediate middle stages. 2. Complex DSP applications: the required computation is almost doubled. Parallelism will allow two similar channels processing at the same time. The communication between the two channels has to be minimized. 3. Applicatilm specific systems: this emerging approach should achieve real-time performance in a cost-effective way. 4. Testability and fault tolerance: reliability has become a required feature in most of DSP systems. To achieve such property, the involved time overhead is significant. Parallelism may be the solution to maintain ac ceptable speed performance.
Download or read book Parallel Array Processing written by Paul Gerard Ducksbury and published by . This book was released on 1986 with total page 136 pages. Available in PDF, EPUB and Kindle. Book excerpt: Presents advantages of using new parallel systems and their applications.
Download or read book Highly Parallel Signal Processing Architectures written by Keith Bromley and published by . This book was released on 1986 with total page 192 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Electrical Electronics Abstracts written by and published by . This book was released on 1989 with total page 1606 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book International Aerospace Abstracts written by and published by . This book was released on 1997 with total page 660 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Array Processing Techniques for Direction of Arrival Estimation Communications and Localization in Vehicular and Wireless Sensor Networks written by and published by . This book was released on 2018 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
