关于CMA盲均衡算法的稳态剩余误差的研究

The Study About Residual Error after Convergence of CMA Blind Equalization Algorithm

CMA是一种广泛应用的盲均衡算法，但由于分析的困难，人们对它的了解还不充分。本文研究了CMA收敛后的剩余误差问题，发现CMA的超量均方误差与信号的统计特性有关，这一发现揭示了CMA本质特性的一个方面，有助于加深对CMA的认识；另外本文还给出了一个能大致反映超量均方误差与信号关系的特征值，对工程应用和理论分析有一定的帮助。

CMA is a widely used blind equalization algorithm, but it is not well-understand because ofthe difficulty in theroretical analysis. THis paper investigate the residual error after convergence of CMA, We show thatthe excess MSE is related to the properties of the signal itself, this discovery expose one aspect of the nature ofCMA, it is also usieul for more penetrating insight of CMA; Furthermore, a characteristic value is presented inthis paper, We can see the relations beetween the exccess MSE and the signal through it, and it's also helptul fortneoretic analysis and appllcations.