New Adaptive Equalizer Algorithm for Group Delay
Lidong Zhu · Video Engineering · 2009
Based on the structure of blind equalizer,a optimized adaptive equalizer algorithm is proposed to compensate the influence of group delay in wireless channel.Based on the principle of minimum mean square error,a modified variable step size LMS algorithm is adapted to adjust the coefficients of two filters in decision feedback equalizer.By the simulation of 16-QAM,the results show that the influence of group delay can be compensated by this new algorithm effectively,where the bit error rate is significantly reduced.