Optimal design of variable fractional-delay digital filters

信号处理 Pub Date : 2001-08-06 DOI:10.1109/SSP.2001.955295

T. Deng

引用次数: 0

Abstract

This paper presents a closed-form solution for obtaining the optimal coefficients of variable FIR filters with continuously adjustable fractional-delay (FD) response. The design is formulated as a weighted-least-squares (WLS) approximation problem without discretizing the frequency and fractional-delay parameters. Compared with the existing WLS method, the discretization-free one can yield a closed-form optimal solution with considerably reduced computational complexity.

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可变分数延迟数字滤波器的优化设计

本文提出了一种求连续可调分数延迟(FD)响应的可变FIR滤波器最优系数的封闭解。该设计是一个加权最小二乘(WLS)近似问题，没有离散频率和分数延迟参数。与现有的WLS方法相比，无离散化的WLS方法可以得到封闭形式的最优解，大大降低了计算复杂度。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

信号处理

自引率

0.00%

发文量

5812

期刊介绍： Journal of Signal Processing is an academic journal supervised by China Association for Science and Technology and sponsored by China Institute of Electronics. The journal is an academic journal that reflects the latest research results and technological progress in the field of signal processing and related disciplines. It covers academic papers and review articles on new theories, new ideas, and new technologies in the field of signal processing. The journal aims to provide a platform for academic exchanges for scientific researchers and engineering and technical personnel engaged in basic research and applied research in signal processing, thereby promoting the development of information science and technology. At present, the journal has been included in the three major domestic core journal databases "China Science Citation Database (CSCD), China Science and Technology Core Journals (CSTPCD), Chinese Core Journals Overview" and Coaj. It is also included in many foreign databases such as Scopus, CSA, EBSCO host, INSPEC, JST, etc.