Title :
Real-time signal analysis with the Wigner distribution using a SAW convolver
Author :
Schrom, G. ; Pietsch, W. ; Reind, L. ; Seifert, F.
Author_Institution :
Inst. fur Allgemeine Elektrotech., Tech. Univ. Wien, Austria
Abstract :
A new method for determining the Wigner distribution (WD) of broadband signals is presented. Using a surface acoustic wave convolver as fast computing element and an oscilloscope as display element a unique way of computing the WD of a signal (e.g., the impulse response of a linear system) has been investigated. An experimental system has been built and used to measure the WD of several different filters and signals. The mathematical background of the method, its limitations and dependence on the properties of the convolver, and possible implementations are investigated
Keywords :
Wigner distribution; signal processing equipment; signal representation; surface acoustic wave convolution; time-frequency analysis; transient response; SAW convolver; Wigner distribution; broadband signals; experimental system; filters; impulse response; linear system; oscilloscope; real-time signal analysis; surface acoustic wave convolver; time-frequency representation; Acoustic measurements; Acoustic waves; Bandwidth; Convolution; Convolvers; Filters; Geophysical measurements; Signal analysis; Surface acoustic waves; Time frequency analysis;
Conference_Titel :
Spread Spectrum Techniques and Applications Proceedings, 1996., IEEE 4th International Symposium on
Conference_Location :
Mainz
Print_ISBN :
0-7803-3567-8
DOI :
10.1109/ISSSTA.1996.563234
