Title :
Bandpass variable-bandwidth filter for reconstruction of signals with known boundary in time-frequency domain
Author :
Lee, Heyoung ; Bien, Zeungnam
Author_Institution :
Dept. of Control & Instrum. Eng., Seoul Nat. Univ. of Technol., South Korea
Abstract :
A bandpass variable-bandwidth filter (BPVBF) is proposed for the reconstruction of the signal whose boundaries are known in time-frequency domain (TFD). The behaviors of the ideal BPVBF are investigated in TFD. Simulation results show that the ideal BPVBF rejects noise in the outside of a region of interest in TFD and produces the reliable reconstruction of signals.
Keywords :
band-pass filters; signal reconstruction; time-frequency analysis; bandpass variable-bandwidth filter; instantaneous bandwidth; instantaneous frequency; noise rejection; signal reconstruction; time-frequency domain; Band pass filters; Bandwidth; Equations; Fourier transforms; Frequency; Nonlinear filters; Radar measurements; Signal analysis; Signal reconstruction; Sonar;
Journal_Title :
Signal Processing Letters, IEEE
DOI :
10.1109/LSP.2003.819872
