%0 Journal Article
%A SHUAI Guoxiang
%A WANG Xuming
%A ZHANG Zhiwei
%A PENG Hao
%T Multi-Frequency Signal Parameter Analysis Based on High-Order Rectangular Convolution Window
%D 2021
%R 10.13438/j.cnki.jdzk.2021.04.011
%J Journal of Jishou University(Natural Sciences Edition)
%P 55-58
%V 42
%N 4
%X When the multi-frequency signal is sampled asynchronously, in order to reduce the negative influence of the frequency spectrum leakage and the fence effect in the fast Fourier transform of the multi-frequency signal. Based on the theoretical basis of rectangular convolution window and the triple-spectral-line interpolation, proposed a method of signal parameter estimation that combines a high-order rectangular convolution window and triple-spectral-line interpolation. The simulation experiment results show that, for the amplitude and frequency of the multi-frequency signal, the method of high-order rectangular convolution window triple-spectral-line interpolation has higher estimation accuracy than the method of FFT and the method of Hanning window.
%U https://zkxb.jsu.edu.cn/EN/10.13438/j.cnki.jdzk.2021.04.011