Title :
On the interpretation of Wigner distribution by STFT
Author :
Sun, Xiaobing ; Bao, Zheng
Author_Institution :
Electron. Eng. Inst., Xidian Univ., Xi´´an, China
Abstract :
A new relation between the Wigner distribution (WD) and the short-time Fourier transform (STFT) is given in this paper. Based on this relation, we interpreted the time-frequency resolution, producing and distributing the cross terms of the WD in the view of the windows of STFT. It is concluded that by sagaciously choosing the windows of STFT, we can achieve a higher resolution than the WD. The theoretical analysis is confirmed by computer simulation results
Keywords :
Fourier transforms; Wigner distribution; signal representation; signal resolution; time-frequency analysis; STFT; Wigner distribution; computer simulation; short-time Fourier transform; signal representation; time-frequency resolution; Analytical models; Chirp modulation; Computational modeling; Computer simulation; Energy resolution; Fourier transforms; Frequency; Signal analysis; Signal resolution; Sun;
Conference_Titel :
Signal Processing, 1996., 3rd International Conference on
Conference_Location :
Beijing
Print_ISBN :
0-7803-2912-0
DOI :
10.1109/ICSIGP.1996.567278
