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检索条件"任意字段=Advanced Signal Processing Algorithms, Architectures, and Implementations III"

共 457 条记录，以下是71-80 订阅

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SYSTEMATIC CONSTRUCTION OF ORDER-RECURSIVE LS ESTIMATION algorithms WITH ELEMENTARY ORTHOGONAL TRANSFORMATIONS 4

SYSTEMATIC CONSTRUCTION OF ORDER-RECURSIVE LS ESTIMATION ALG...

引用

4TH CONF ON advanced signal processing algorithms, architectures, AND implementations

作者： LING, F Motorola (United States)

ISBN: (纸本)0819412767

This paper demonstrates that order-recursive least squares (ORLS) algorithms based on orthogonal transformations and hyperbolic transformations can be systematically constructed in two steps. The first step is to determine the structure of the ORLS algorithm according to the property of the data vector in the LS estimation and the requirements to the output. The second step is to determine the proper implementation of building blocks of the ORLS structure using orthogonal or hyperbolic transformations. The canonical ORLS structure and some possible orthogonal/hyperbolic implementations of their building blocks are presented. It is also shown that some of the orthogonal transformations are only applicable to certain types of ORLS structures and not to others.

关键词： Algorithm development Error analysis Detection and tracking algorithms Digital signal processing Expectation maximization algorithms Statistical analysis Factor analysis Magnesium Roads Telecommunications

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Scale-cumulant domain deconvolution of sensor array signals

Scale-cumulant domain deconvolution of sensor array signals

引用

Conference on advanced signal processing algorithms, architectures, and implementations X

作者： Izzetolu, M Akgül, T Drexel Univ Dept Elect & Comp Engn Philadelphia PA 19104 USA

ISBN: (纸本)0819437611

In this paper we combine two recently developed multi-scale deconvolution algorithms, known as the scale-time domain method and the sum-of-cumulants domain method. We formulate the deconvolution problem in the scale-cumulant domain using the Scale Transform (ST) and show that the procedure is simpler when the unknown source signal is non-minimum phase and robust if Gaussian noise exists.

关键词： Sensors Deconvolution Electronic filtering Interference (communication) Algorithm development Reflectors signal processing Convolution Detection theory Image processing

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NONLINEAR signal-processing USING RADIAL BASIS FUNCTIONS

NONLINEAR SIGNAL-PROCESSING USING RADIAL BASIS FUNCTIONS

引用

CONF ON advanced signal-processing algorithms, architectures, AND implementations

作者： SHEPHERD, TJ BROOMHEAD, DS Royal Signals and Radar Establishment (United Kingdom) Royal Signals and Radar Establ (United Kingdom)

ISBN: (纸本)0819404098

A procedure for multidimensional nonlinear modeling and interpolation is described which employs the method of radial basis function analysis. A systolic array for efficiently performing the associated computation for both the modeling and interpolation modes recursively in time is also described. Conditions are given for the further improvement of efficiency in the algorithm when the input data constitute a time series, and an associated processing structure is outlined.

关键词： Nonlinear optics signal processing

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Wave propagation with dispersion and damping

Wave propagation with dispersion and damping

引用

Conference on advanced signal processing algorithms, architectures, and implementations XIV

作者： Cohen, L CUNY New York NY 10021 USA

ISBN: (纸本)0819454974

We discuss pulse propagation in a dispersive medium with damping. We derive an explicit expression for the center of mass motion and show that when there is damping the center of mass does not travel with constant velocity, as is the case when there is no damping. We also derive an explicit relation connecting pulse propagation in the damped case with that of the undamped case. This allows the transformation from one case to the other. A number of exactly solvable examples are given to illustrate the equations derived.

关键词： Wave propagation Dispersion Fourier transforms Differential equations signal attenuation signal processing

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ARITHMETIC UNIT BASED ON A HIGH-SPEED MULTIPLIER WITH A REDUNDANT BINARY ADDITION TREE

ARITHMETIC UNIT BASED ON A HIGH-SPEED MULTIPLIER WITH A REDU...

引用

CONF ON advanced signal processing algorithms, architectures, AND implementations 2

作者： TAKAGI, N Kyoto Univ. (Japan)

An arithmetic unit based on a high-speed multiplier with a redundant binary addition tree is proposed. It is efficient for numerical computations with iteration of multiplications and addition/subtractions. A new mult... 详细信息

ISBN: (纸本)0819406945

关键词： Binary data signal processing Americium Digital signal processing Computer architecture Information science Laser induced breakdown spectroscopy Lithium Silicon Very large scale integration

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ERROR PROPAGATION OF SOME FAST RLS algorithms 4

ERROR PROPAGATION OF SOME FAST RLS ALGORITHMS

引用

4TH CONF ON advanced signal processing algorithms, architectures, AND implementations

作者： QIAO, SZ McMaster Univ. (Canada)

ISBN: (纸本)0819412767

The fast recursive least squares (RLS) algorithms have wide applications in signal processing and control. They are computationally efficient. Thus their stability is of major concern. In this paper, we investigate the error propagation and stability of some typical fast RLS algorithms. Through a random example, we show that a typical conventional fast RLS algorithm is weakly unstable in computing both the residuals and the gain vectors and a QR based algorithm is expected to be weakly stable in computing the residuals but weakly unstable in computing the gain vectors. We propose an error correction scheme for computing the gain vectors.

关键词： Algorithm development Condition numbers MATLAB Lead Process control signal processing Analytical research

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FPOP: Field Programmable On-line oPerators

FPOP: Field Programmable On-line oPerators

引用

Conference on advanced signal processing algorithms, architectures, and implementations IX

作者： Tisserand, A Marchal, P Piguet, C CSEM Neuchatel Switzerland

ISBN: (纸本)0819432938

This paper describes a new digital reprogrammable architecture called Field Programmable On-line oPerators (FPOP). This architecture is a kind of FPGA dedicated to very low-power implementations of numerical algorithms in signal processing or digital control applications for embedded or portable systems. FPOP is based on a reprogrammable array of on-line arithmetic operators. On-line arithmetic is a digit-serial arithmetic with most significant digits first using a redundant number system. Because of the small size of the digit-serial operators and the small number of communication wires between the operators, single chip implementation of complex numerical algorithms can be achieved using on-line arithmetic. Furthermore, the digit-level pipeline and the small size of the arithmetic operators lead to high-performance parallel computations. Compared to a standard FPGA, the basic cells in FPOP are arithmetic operators such as adders, subtracters, multipliers, dividers, square-rooters, sine or cosine operators. This granularity level allows very efficient power x delay implementations of most algorithms used in digital control and signal processing. The circuit also integrates some analog to digital and digital to analog converters.

关键词： FPGA reconfigurable logic on-line arithmetic digital control signal processing

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Neural model-based motion estimation

Neural model-based motion estimation

引用

Conference on advanced signal processing - algorithms, architectures, and implementations VII

作者： Szostakowski, J Skoneczny, S Iwanowski, M Warsaw Univ. of Technology (Poland)

ISBN: (纸本)0819425842

In this paper a novel method of estimating displacement of moving objects from one frame to the next in the image sequence is presented. This method is based on using the artificial neural networks for different models of motion. The two model is examined: affine flow and planar surface motion. Various circuit architectures of simple neuron-like processors are considered for estimation of motion parameters. The efficiency of the proposed networks are investigated by computer simulation for using in video processing.

关键词： image processing neural networks video processing motion estimation

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Application of multigrid techniques to image restoration problems

Application of multigrid techniques to image restoration pro...

引用

Conference on advanced signal processing algorithms, architectures and implementations XII

作者： Chan, RH Donatelli, M Serra-Capizzano, S Tablino-Possio, C Chinese Univ Hong Kong Dept Math Shatin Hong Kong Peoples R China

ISBN: (纸本)0819445584

We briefly describe a multigrid strategy for unilevel and two-level linear systems whose coefficient matrix A(n) belongs either to the Toeplitz class or to the cosine algebra of type iii and such that A(n) can be naturally associated, in the spectral sense, with a polynomial function f. The interest of the technique is due to its optimal cost of O(N) arithmetic operations, where N is the size of the algebraic problem. We remark that these structures arise in certain 2D image restoration problems or can be used as preconditioners for more complicated image restoration problems.

关键词： DCT-iii matrix algebra cosine transform Toeplitz matrices two-level structures multigrid and preconditioning

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Example of combined algorithm development and architecture design (Keynote Paper)

Example of combined algorithm development and architecture d...

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advanced signal processing algorithms, architectures, and implementations iii

作者： Deprettere, Ed F. Delft Univ. of Technology Delft Netherlands

Matrix computation and signal processing applications can be given effective and efficient concrete forms in a systematic way if (1) the originating problems have formal and complete specifications and (2) the associa... 详细信息

ISBN: (纸本)081940943X

关键词： signal processing

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