Title :
Real-time measurement of the Wigner distribution with a SAW convolver
Author :
Schrom, G. ; Pietsch, W. ; Reindl, L. ; Seifert, F.
Author_Institution :
Inst. fur Allgemeine Elektrotechnik, Tech. Univ. Wien, Austria
Abstract :
A new method for measuring the Wigner distribution (WD) of a signal 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; convolution; real-time systems; spectral analysis; surface acoustic wave convolution; transient response; SAW convolver; Wigner distribution; finite bandwidth; impulse response; linear system; oscilloscope; real-time measurement; surface acoustic wave convolver; Acoustic measurements; Acoustic waves; Computer displays; Convolvers; Filters; Geophysical measurements; Radio frequency; Spectrogram; Surface acoustic waves; Time frequency analysis;
Conference_Titel :
Instrumentation and Measurement Technology Conference, 1996. IMTC-96. Conference Proceedings. Quality Measurements: The Indispensable Bridge between Theory and Reality., IEEE
Conference_Location :
Brussels
Print_ISBN :
0-7803-3312-8
DOI :
10.1109/IMTC.1996.507296
