On the convergence of blind adaptive equalizers for constant modulus signals

This paper studies the behavior of the error sequence of stop-anti-go variants of two adaptive blind equalizers, namely CMA2-2 and Sato's (1975) algorithm. It is shown that for transmitted signals with constant modulus /spl gamma/, the equalizer output can be made to lie within the circle of radius /spl gamma//spl radic/c infinitely often, for some value of c that is only slightly larger than one.