TY - GEN
T1 - Reduced bias time-frequency peak filtering
AU - Mesbah, Mostefa
AU - Boashash, Boualem
PY - 2001
Y1 - 2001
N2 - Time-frequency peak filtering (TFPF) allows the reconstruction of signals from observations corrupted by additive noise by encoding the noisy signal as the instantaneous frequency (IF) of an FM analytic signal. IF estimation is then performed on the analytic signal using the peak of a time-frequency distribution (TFD) to recover the filtered signal. This method is biased when the peak of the Wigner-Ville distribution (WVD) is used to estimate the encoded signal's instantaneous frequency. We derive the windowed WVD window length that achieves a reduced bias when TFPF is used for the class of deterministic bandlimited non-stationary multicomponent signals in additive white Gaussian noise (AWGN).
AB - Time-frequency peak filtering (TFPF) allows the reconstruction of signals from observations corrupted by additive noise by encoding the noisy signal as the instantaneous frequency (IF) of an FM analytic signal. IF estimation is then performed on the analytic signal using the peak of a time-frequency distribution (TFD) to recover the filtered signal. This method is biased when the peak of the Wigner-Ville distribution (WVD) is used to estimate the encoded signal's instantaneous frequency. We derive the windowed WVD window length that achieves a reduced bias when TFPF is used for the class of deterministic bandlimited non-stationary multicomponent signals in additive white Gaussian noise (AWGN).
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U2 - 10.1109/ISSPA.2001.949844
DO - 10.1109/ISSPA.2001.949844
M3 - Conference contribution
AN - SCOPUS:84903812214
SN - 0780367030
SN - 9780780367036
T3 - 6th International Symposium on Signal Processing and Its Applications, ISSPA 2001 - Proceedings; 6 Tutorials in Communications, Image Processing and Signal Analysis
SP - 327
EP - 330
BT - 6th International Symposium on Signal Processing and Its Applications, ISSPA 2001 - Proceedings; 6 Tutorials in Communications, Image Processing and Signal Analysis
PB - IEEE Computer Society
T2 - 6th International Symposium on Signal Processing and Its Applications, ISSPA 2001
Y2 - 13 August 2001 through 16 August 2001
ER -