A approach for generating high precision digital time—delay with low computational load

MA Yuanliang; ZHAO Junwei; ZHANG Yanwu

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A approach for generating high precision digital time—delay with low computational load

机译：一种生成高精度数字时间的方法，计算延迟低

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摘要

In this paper a novel method to generate high-precision and continuously adjustable digital time-delay by utilizing the linear phase of a FIR filter is presented. The generated time-delay can be continuously changed by adjusting the filter weights. The time-delay is precise and valid for wide-band, while the computational load is low. The proposed approach can find applications in wide-band digital beamforming, adaptive delay estimation, temporal analysis of reflected waveform, etc.. In the paper, the basic principle, design steps and simulation results are given. Also shown are some typical practical applications.

机译：本文提出了一种利用FIR滤波器的线性相位生成高精度和连续可调数字时延的新方法。可以通过调整过滤器权重来连续更改生成的时间延迟。时间延迟是精确的，并且对于宽带有效，而计算量很低。该方法可以在宽带数字波束形成，自适应延迟估计，反射波形的时间分析等方面找到应用。本文给出了基本原理，设计步骤和仿真结果。还显示了一些典型的实际应用。

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来源
《Chinese Journal of Acoustics》 |1995年第1期|p.27-33|共7页
作者
MA Yuanliang; ZHAO Junwei; ZHANG Yanwu;
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作者单位

College of Marine Engineering Northwestern Polytechnical University, Xi'an Shaanxi 710072;

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原文格式 PDF
正文语种 eng
中图分类声学;
关键词
continuously adjustable; high-precision; FIR digital filter; novel approach; low computational load;

机译：连续可调;高精度;FIR数字滤波器;新颖的方法;低计算量;

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A approach for generating high precision digital time—delay with low computational load

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