Title :
Tracking properties of complex adaptive notch filter for detection of multiple real sinusoids
Author :
Nishimura, S. ; Mvuma, Aloys ; Hinamoto, Takao
Author_Institution :
Shimane Univ., Hamamatsu, Japan
Abstract :
This paper presents a new realization of adaptive notch filter based on a cascade of adaptive IIR notch filters using complex coefficient first-order notch filters. The input is multiple real linear chirp signals embedded in a white Gaussian noise. Closed-form expression for frequency tracking mean square error (MSE) is given. Optimum step size parameter and notch bandwidth coefficient that minimize the tracking MSE are also derived. Computer simulation results are presented to validate the analysis.
Keywords :
AWGN; IIR filters; adaptive filters; mean square error methods; notch filters; MSE; adaptive IIR notch filters; complex adaptive notch filter; complex coefficient; computer simulation; first-order notch filters; frequency tracking; mean square error; multiple real linear chirp signals; multiple real sinusoid detection; notch bandwidth coefficient; tracking properties; white Gaussian noise; Adaptive filters; Band-pass filters; Bandwidth; Filtering algorithms; IIR filters; Optimized production technology; Radar tracking;
Conference_Titel :
Circuits and Systems (ISCAS), 2013 IEEE International Symposium on
Conference_Location :
Beijing
Print_ISBN :
978-1-4673-5760-9
DOI :
10.1109/ISCAS.2013.6572492
