Implementation of a blind equalizer for digital QAM receiver
Jiang Wen-ju · Tv Engineering · 2003
This paper proposes an architecture of a blind adaptive equalizer for digitized QAM receiver. The equalizer has been designed using Multi-Modulus AlgorithmMMAand Least Mean Square LMS,called MMA_LMS algorithm, combining with the decision feedback equalizer DFEstructure. The structure includes two DFE filter banks, one is feedforward filter, another is feedbackward filter , to improve the channel adaptive performance and reduce the number of taps. Simulation result demonstrates that the equalizer has a better performance than Constant Modulus Algorithm and it is easier to implement with hardware.