Title :
Joint amplitude and delay estimation for CDMA systems in impulsive channels
Author :
Weng, J.F. ; Leung, S.H. ; Lau, W.H.
Author_Institution :
Dept. of Electron. Eng., City Univ. of Hong Kong, Hong Kong
Abstract :
A nonlinear extended recursive least square algorithm for the joint estimation of the amplitude and delay of the user signals in CDMA system over impulsive channels is presented. Simulation results show that by using a nonlinear function to palliate the effect of the impulse noise, the new algorithm can provide a robust performance quite close to the Cramer-Rao lower bound
Keywords :
amplitude estimation; code division multiple access; delays; least squares approximations; recursive estimation; telecommunication channels; CDMA system; Cramer-Rao lower bound; amplitude estimation; delay estimation; impulse noise; impulsive channel; nonlinear extended recursive least square algorithm; nonlinear function; simulation; user signal; Amplitude estimation; Cities and towns; Delay estimation; Electrons; Low pass filters; Multiaccess communication; Noise level; Noise robustness; Sampling methods; Signal to noise ratio;
Conference_Titel :
Circuits and Systems, 1997. ISCAS '97., Proceedings of 1997 IEEE International Symposium on
Print_ISBN :
0-7803-3583-X
DOI :
10.1109/ISCAS.1997.612835
