Title :
A median type matched filter
Author :
Astola, J. ; Neuvo, Y.
Author_Institution :
Tampere Univ. of Technol., Finland
Abstract :
A class of median-type filters called matched median filters is defined for the estimation of the information which is carried by the amplitude of a noisy signal. These filters form the natural counterpart of linear matched filters in the class of median-type filters. Matched median filters are defined both for baseband and passband systems, and their statistical properties are analyzed. It is shown that a weighted vector median filter can be used to solve the corresponding estimation problem for complex and bandpass signals
Keywords :
band-pass filters; filtering and prediction theory; matched filters; signal processing; bandpass signals; matched median filters; median type matched filter; noisy signal; statistical properties; weighted vector median filter; Amplitude estimation; Band pass filters; Baseband; Information filtering; Information filters; Matched filters; Noise level; Nonlinear filters; Passband; Vectors;
Conference_Titel :
Acoustics, Speech, and Signal Processing, 1990. ICASSP-90., 1990 International Conference on
Conference_Location :
Albuquerque, NM
DOI :
10.1109/ICASSP.1990.115803
