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Applied Mathematics and Mechanics (English Edition) ›› 2000, Vol. 21 ›› Issue (5): 537-542.

• 论文 • 上一篇    下一篇

A DISCRETE ALGORITHM FOR COMPLEX FREQUENCY-DOMAIN CONVOLUTIONS

蔡坤宝1, 杨瑞芳2, 俞集辉1   

  1. 1. College of Electrical Engineering, Chongqing University, Chongqing 400044, P. R. China;
    2. Biological Engineering Center, Chongqing University, Chongqing 400044, P. R. China
  • 收稿日期:1998-05-08 修回日期:2000-01-20 出版日期:2000-05-18 发布日期:2000-05-18
  • 基金资助:
    the National Natural Science Foundation of China (39470147)

A DISCRETE ALGORITHM FOR COMPLEX FREQUENCY-DOMAIN CONVOLUTIONS

Cai Kunbao1, Yang Ruifang2, Yu Jihui1   

  1. 1. College of Electrical Engineering, Chongqing University, Chongqing 400044, P. R. China;
    2. Biological Engineering Center, Chongqing University, Chongqing 400044, P. R. China
  • Received:1998-05-08 Revised:2000-01-20 Online:2000-05-18 Published:2000-05-18
  • Supported by:
    the National Natural Science Foundation of China (39470147)

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摘要： A discrete algorithm suitable for the computation of complex frequency-domain convolution on computers was derived. The Durbin's numerical inversion of Laplace transforms can be used to figure out the time-domain digital solution of the result of complex frequency-domain convolutions. Compared with the digital solutions and corresponding analytical solutions, it is shown that the digital solutions have high precision.

Abstract: A discrete algorithm suitable for the computation of complex frequency-domain convolution on computers was derived. The Durbin's numerical inversion of Laplace transforms can be used to figure out the time-domain digital solution of the result of complex frequency-domain convolutions. Compared with the digital solutions and corresponding analytical solutions, it is shown that the digital solutions have high precision.

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