RAO Wei1, SUN Hui1, GUO Ye-cai2, et al. New constant modulus algorithm suitable for nonconstant modulus signals[J]. 2011, 32(9): 167-173.DOI:
适用于非常模信号的常数模新算法
摘要
常数模算法在对非常模信号进行均衡时
稳态均方误差无法收敛至零。对常数模算法中的代价函数进行修正
该代价函数能将非常模信号的多个幅度模值变换成单一幅度模值
从而使新算法的稳态均方误差为零。理论分析和仿真结果证明了新算法的优良性能。
Abstract
The steady-state mean square error(MSE) of constant modulus algorithm(CMA) can not converge to zero for nonconstant modulus signals.By changing the multimodulus of nonconstant modulus source to single modulus
a new cost function was defined.And the new CMA based on such cost function can lead the steady-state MSE to zero.Theoretic analysis and computer simulation results demonstrate that the proposed algorithm offer high performance.