摘要
本文给出时限信号的细化变换算法。在一般FFT计算结果基础上用本文式(9)计算,可快速得出全频域的细化(高分辨率)的精确变换值。文中还给出更快速的细化近似算法。
In this paper the zoom fast DFT computative method of the time-limited signal is given. On the basis of general computational results of FFT we may rapidly obtaia the accurate zoom (high resolution) spectrum on full frequency domain by formula ( 9 ). The more rapidly approximate zoom computing method is also given.
出处
《地震工程与工程振动》
CSCD
北大核心
1992年第1期18-24,共7页
Earthquake Engineering and Engineering Dynamics
基金
地震科学联合基金
