Title :
Wavelet system application in nonstationary signals processing
Author :
Simeonov, Kamen ; Popov, Metodi ; Trifonov, Tihomir ; Simeonov, Ivan
Author_Institution :
Design Office K, Bulgaria
Abstract :
Summary form only given, as follows. Some features of the application of wavelet analysis to nonstationary signals (DS-CDMA, nonstationary acoustic signals etc.) are considered. Its advantages and disadvantages in processing when wide-band noise (jamming) is present are shown. Comparison is made with the short time Fourier transform (STFT) applied to local segments of the signal. The discussed examples treat quasi-seismic signals recorded when bombing training is carried out by the Air Force. Some typical situations are considered: dive-bombing, ascent, blasting signals of standard loads etc
Keywords :
Fourier transforms; acoustic signal processing; jamming; random noise; signal processing; wavelet transforms; DS-CDMA; bombing training; jamming; nonstationary acoustic signals; nonstationary signal processing; quasiseismic signals; seismic signals; short time Fourier transform; wavelet analysis; wide-band noise; Acoustic applications; Acoustic noise; Acoustic signal processing; Acoustic waves; Jamming; Multiaccess communication; Signal analysis; Signal processing; Wavelet analysis; Wideband;
Conference_Titel :
Applied Electromagnetism, 2000. Proceedings of the Second International Symposium of Trans Black Sea Region on
Conference_Location :
Xanthi
Print_ISBN :
0-7803-6428-7
DOI :
10.1109/AEM.2000.943220
