Title :
A step-varied CMA blind equalization algorithm based on autocorrelation of error signal
Author :
Qiu Xinyun ; Gao Yuan
Author_Institution :
Dept. of Autom. Eng., Northeastern Univ. at Qinhuangdao, Qinhuangdao, China
Abstract :
A step-varied blind equilibrium algorithm is proposed in this paper, in which step is controlled by error signal pointing to the problem caused by step-constant blind equilibrium algorithm. The proposed algorithm regulates equalizer parameter in real time by varied step. Thus, time-variant channel can be equilibrated rapidly and anti-jamming is greatly improved in low SNR communication. At last, the equalizer is superior to the equalizer based on step-constant CMA algorithm in common channel by simulation.
Keywords :
blind equalisers; SNR communication; autocorrelation; error signal; step varied CMA blind equalization algorithm; time variant channel; Automation; Blind equalizers; Constellation diagram; Least squares approximation; Signal processing algorithms; Blind Equalization Algorithm; CMA Algorithm; Changing Steps; Equalizer;
Conference_Titel :
Control Conference (CCC), 2010 29th Chinese
Conference_Location :
Beijing
Print_ISBN :
978-1-4244-6263-6
