Title :
A new approach for multiple FM interference suppression in spread spectrum systems
Author_Institution :
Res. & Training Unit for Navigational Electron., Osmania Univ., Hyderabad, India
Abstract :
In this paper, a cascade filter approach is proposed for suppression of multiple FM interferences in the spread spectrum systems. A Kalman-type nonlinear adaptive filter namely, augmented state approximate conditional mean filter (ASACMF) has been formulated for multiple FM interference suppression. Then, this ASACMF is cascaded with the DWT filter. A performance analysis of the proposed cascade filter, the ASACMF, and the DWT filter with different wavelet, is presented for suppression of multiple FM interferences.
Keywords :
Kalman filters; adaptive filters; discrete wavelet transforms; interference suppression; nonlinear filters; radiofrequency interference; spread spectrum communication; Kalman-type nonlinear adaptive filter; augmented state approximate conditional mean filter; cascade filter approach; discrete wavelet transform; interference mitigation; multiple FM interference suppression; spread spectrum system; Adaptive filters; Correlators; Discrete wavelet transforms; Finite impulse response filter; Frequency estimation; Interference suppression; Narrowband; Performance analysis; Spread spectrum communication; Wideband; ASACM Filter; DWT filter; Interference Mitigation; Kalman filter; Spread Spectrum Systems;
Conference_Titel :
Emerging Technologies: Circuits and Systems for 4G Mobile Wireless Communications, 2005. ETW '05. 2005 IEEE 7th CAS Symposium on
Print_ISBN :
5-7422-0895-2
DOI :
10.1109/EMRTW.2005.195689
