检索结果-内蒙古大学图书馆

NEW PARALLEL implementations FOR DTW algorithms

IEEE TRANSACTIONS ON ACOUSTICS SPEECH AND signal processing 1990年第4期38卷 705-711页

作者： STAINHAOUER, GN CARAYANNIS, G Computer Science Division. Department of Electrical Engineering National and Technical University of Athens Athens Greece

The parallel realization of a popular dynamic time warping (DTW) algorithm is discussed. Two alternative techniques are proposed, one based on a circular array and the other using a linear array of processing elements (PEs). The architecture of each PE is defined in both cases and computational phases are outlined. The number of PEs is not restricted to be fixed. With small modifications, both of the techniques can implement DTW with any number of PEs available. The performance of the new architectures is superior to that of architectures previously reported in the literature.< >

关键词： Speech recognition Computer architecture Speech processing Testing signal processing algorithms Computational complexity Very large scale integration Multiprocessing systems Computer science

来源：评论

学校读者我要写书评

暂无评论

DISTRIBUTIONS CONCENTRATED ALONG THE INSTANTANEOUS FREQUENCY

DISTRIBUTIONS CONCENTRATED ALONG THE INSTANTANEOUS FREQUENCY

引用

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

作者： COHEN, L Hunter College/CUNY (United States)

We show that for purely frequency modulated signals one can always find a distribution which is infinitely concentrated along its instantaneous frequency. For signals that are both frequency and amplitude modulated we... 详细信息

ISBN: (纸本)0819404098

关键词： Frequency modulation Modulation Fermium Phase shift keying Amplitude modulation Algorithm development Phase modulation Time-frequency analysis signal analysis Tellurium

来源：评论

学校读者我要写书评

暂无评论

EFFICIENT BEAM-BASED ADAPTIVE processing FOR PLANAR ARRAYS

EFFICIENT BEAM-BASED ADAPTIVE PROCESSING FOR PLANAR ARRAYS

引用

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

作者： KRATZER, SG Supercomputing Research Ctr. (United States)

ISBN: (纸本)0819404098

Beam-based adaptive processing is an economical way to achieve good interference rejection performance from an adaptive receiving array, at much less computational cost than full element-based methods. However, to exploit this potential for planar arrays it is necessary to identify, in real time, which beams must be retained for adaptive concellation. This paper analyzes the beam-selection problem and presents a computationally efficient algorithm that performs real-time beam selection.

关键词： signal processing signal to noise ratio Statistical analysis Algorithm development Beam analyzers Electroluminescence Cobalt Electronics Fourier transforms Phased arrays

来源：评论

学校读者我要写书评

暂无评论

RELATIONSHIPS BETWEEN THE FOURIER-TRANSFORM AND THE WAVELET TRANSFORM

RELATIONSHIPS BETWEEN THE FOURIER-TRANSFORM AND THE WAVELET ...

引用

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

作者： RESNIKOFF, HL BURRUS, CS Aware Inc. (United States) Aware Inc. and Rice Univ. (United States)

ISBN: (纸本)0819404098

This paper derives the relationship between the coefficients of the Fourier expansion of a periodic signal and the coefficients of the wavelet expansion of the same signal. The formula derived shows how the Fourier concept of frequency and the wavelet concept of scale are related and how the wavelet coefficients display the information contained in the signal in a new way. The relationship also shows how the wavelet expansion can be used to approximately calculate the Fourier coefficients.

关键词： Wavelets Fourier transforms Wavelet transforms Computing systems Digital signal processing Mathematical modeling signal processing Systems modeling Feature extraction Mathematics

来源：评论

学校读者我要写书评

暂无评论

Time-varying noise

Time-varying noise

引用

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

作者： Galleani, L Cohen, L CUNY New York NY 10021 USA

We obtain the exact Wigner spectrum for non-white Gaussian noise. As a special case the Wigner spectrum for the Wiener process is obtained.

ISBN: (纸本)0819454974

We obtain the exact Wigner spectrum for non-white Gaussian noise. As a special case the Wigner spectrum for the Wiener process is obtained.

关键词： signal processing

来源：评论

学校读者我要写书评

暂无评论

FREQUENCY VERSUS TIME-DELAY APPROACH FOR ACQUIRING MULTIPLE UNKNOWN CHIRP signalS

FREQUENCY VERSUS TIME-DELAY APPROACH FOR ACQUIRING MULTIPLE ...

引用

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

作者： HOU, HS NG, W The Aerospace Corp. (United States)

ISBN: (纸本)0819404098

A frequency versus timedelay (FVTD) technique is introduced to acquire unknown parameters of received chirp signals. This technique can precisely determine a single chirp clearly distinguish completely overlapped upchirp and downchirp and is also capable of realizing various overlapped multiple chirp signals. The basic implementation concept of this approach is relatively simple. We first employ a bank of bandpass filters to noncoherently process the incoming chirps. The filtered and sampled signals are then shifted into a set of frequency time and power distribution sequences which provide enough information for acquiring the unknown parameters of the received chirp signals. Examples and figures are used to illustrate this procedure.

关键词： signal detection signal processing Filtering (signal processing) Electronic filtering Radar Silicon Linear filtering Electroluminescence Frequency modulation Aerospace engineering

来源：评论

学校读者我要写书评

暂无评论

SYSTOLIC ADAPTIVE BEAMFORMING - FROM THEORY TO PRACTICE

SYSTOLIC ADAPTIVE BEAMFORMING - FROM THEORY TO PRACTICE

引用

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

作者： HARGRAVE, P BNR Europe Ltd. (United Kingdom)

In this paper we describe aspects of an ongoing program of work aimed at the practical realization of systolic array structures to implement digital adaptive beam-forming algorithms.

ISBN: (纸本)0819406945

In this paper we describe aspects of an ongoing program of work aimed at the practical realization of systolic array structures to implement digital adaptive beam-forming algorithms.

关键词： signal processing Acoustics Antennas Algorithm development Phased arrays Prototyping Digital electronics Array processing Data processing Sensors

来源：评论

学校读者我要写书评

暂无评论

HIGHER-ORDER STATISTICS (SPECTRA) AND THEIR APPLICATION IN signal-processing

HIGHER-ORDER STATISTICS (SPECTRA) AND THEIR APPLICATION IN S...

引用

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

作者： MENDEL, JM Univ. of Southern California (United States)

ISBN: (纸本)0819404098

Most real-world signals are non-Gaussian. If they were Gaussian then they could be completely characterized by their first- and second-order statistics, because the probability density function (p.d.f.) for a Gaussian signal is completely described by these statistics. Because most real-world signals are not Gaussian, we need to use more than just first- and second-order statistics, i.e., we need to use "higher-order statistics." We could use higher-order moments, e.g., triplecorrelations, quadruple-correlations, etc., or we could use cumulants. Cumulants are related to higher-order moments, but do not necessarily always equal these moments. Reasons for preferring cumulants over moments are explained below.

关键词： signal processing Acoustics Interference (communication) Statistical analysis Process modeling signal detection Systems modeling Automatic control Fourier transforms signal analyzers

来源：评论

学校读者我要写书评

暂无评论

The Wigner distribution and pulse propagation

The Wigner distribution and pulse propagation

引用

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

作者： Cohen, L CUNY New York NY 10021 USA

We use the Wigner distribution to study pulse propagation in a dispersive media and we show that it leads naturally to a particle view. Using the results obtained we develop a simple approximation method that evolves ... 详细信息

ISBN: (纸本)0819441880

关键词： signal processing

来源：评论

学校读者我要写书评

暂无评论

引用

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

作者： FLANDRIN, P LTS-ICPI (France)

ISBN: (纸本)0819404098

In a very recent past, new techniques, referred to as time-scale methods and making use of the so-called wavelet transform, have been proposed for the analysis of nonstationary or time-varying signals. They are basically devoted to the description of signal time evolutions at different observation scales; this is achieved by using shifted and dilated versions of some elementary analyzing waveform along the time axis. The purpose of this paper is twofold: it is intended (1) to provide a brief overview of linear wavelet techniques (continuous and discrete transforms) and bilinear time-scale methods (time-scale energy distributions), and (2) to put them in some common perspective with existing signal processing tools (Gabor decompositions, constant-Q analysis, quadrature mirror filters, wideband ambiguity functions, time-frequency energy distributions). Existing or potentially relevant applications are also pointed out.

关键词： Transform theory Wavelets Electronic filtering Filtering (signal processing) Linear filtering Mirrors signal processing Time-frequency analysis Wavelet transforms

来源：评论

学校读者我要写书评

暂无评论

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案：

请选择收藏分类：

通借通还

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：