Title :
Transient detection, higher-order time-frequency distributions and the entropy
Author :
Amblard, P.O. ; Lacoume, J.L. ; Brossier, J.M.
Author_Institution :
CEPHAG-ENSIEG, St Martin d´´Heres, France
Abstract :
The authors deal with the use of higher-order time-frequency distributions for the detection of transient signals. They show that a recent method is linked to those objects and also related to information measures. They then propose an heuristic method to detect transients. This method uses a new adaptive estimator of the fourth-order cumulant that they study in details, before presenting simulations that validate the detection method.
Keywords :
information theory; signal detection; time-frequency analysis; transients; adaptive estimator; entropy; fourth-order cumulant; heuristic method; higher-order time-frequency distributions; information measures; simulations; transient signals; Detectors; Entropy; Fourier transforms; Gaussian noise; Multidimensional systems; Position measurement; Recursive estimation; Signal detection; Time frequency analysis; Time measurement;
Conference_Titel :
Higher-Order Statistics, 1993., IEEE Signal Processing Workshop on
Conference_Location :
South Lake Tahoe, CA, USA
Print_ISBN :
0-7803-1238-4
DOI :
10.1109/HOST.1993.264554