论全通滤波器的相位最优逼近

On the Best Phase Approximation of All-Pass Filters

本文考虑在Chebyshev准则下全通滤波器的设计问题。讨论了相位最优逼近的存在性、唯一性及其特征,并提出一个有效算法。利用该算法,可以设计出相位最优的全通滤波器。本文最后还给出几个实例。

The problem of designing all-pass phase networks using Chebyshev criterion is considered. The existence, unicity and characterization of the best apprt ximation to a given phase response are discu-ssed. A practical algorithm is developed to design the opten tell pass filter. Numerical examples are also given.