Performance Bounds on the Constant Modulus Error Surface

Abstract

The constant modulus (CM) error surface is mul-algorithm which is developed analogously to the least mean timodal in nature. This leads to possibility of convergence to squares algorithm (LMS) [3]. Therefore the iterative weight undesired local minima. Recently, we characterized the various update procedure can be given by: stationary points associated with the CM error surface. In this paper we make use of the stationary points to develop upper and Wt = Wt-i £t-Yt-lxt (4) lower bounds on the weight vector, ordering the minima and obtaining a bound on the excess weight error. The simulation It can be seen from Eq.(2) that the equation is of the fourth results agree with the bounds derived.order. Note that unlike the LMS algorithm we are no longer