Title :
Multiple window time-frequency analysis
Author :
Bayram, Metin ; Baraniuk, Richard C.
Author_Institution :
Dept. of Electr. & Comput. Eng., Rice Univ., Houston, TX, USA
Abstract :
We propose a robust method for estimating the time-varying spectrum of a non-stationary random process. Our approach extends Thomson´s powerful multiple window spectrum estimation scheme to the time-frequency and time-scale planes. The method refines previous extensions of Thomson´s method through optimally concentrated window and wavelet functions and a statistical test for extracting chirping line components
Keywords :
random processes; signal resolution; spectral analysis; time-frequency analysis; wavelet transforms; Thomson´s method; chirping line components; multiple window time-frequency analysis; nonstationary random process; robust method; stationary signals; statistical test; time-scale planes; time-varying spectrum estimation; wavelet functions; Acoustic testing; Chirp; Convolution; Kernel; Radar; Random processes; Robustness; Smoothing methods; Sonar; Time frequency analysis;
Conference_Titel :
Time-Frequency and Time-Scale Analysis, 1996., Proceedings of the IEEE-SP International Symposium on
Conference_Location :
Paris
Print_ISBN :
0-7803-3512-0
DOI :
10.1109/TFSA.1996.547209
