Application of ISVD de-noising and reassigned spectrogram in HHT time-frequency spectrum analysis of flue gas turbine signal

Study on intra-pulse modulation recognition method based on time-frequency distribution image and principal component analysis

The authors propose a new method with combination of time domain and frequency domain by using the time-frequency distribution image of the radar signal.

Multiple window time-frequency reassignment based on Hermite window functions;

Multi-components LFM signal recognition based on time-frequency reassignment and Wigner-Hough transform

A time-frequency associated analyzed method based on wavelet transform and time-frequency reassignment and Hough transform is proposed.

In this paper,according to the characteristic of seismic signal s noise,one estimation method of seismic signal s first arrival based on triple correlation of joint time-frequency spectrum is introduced,and the results of experiment and conclusion are presented.