The constant modulus blind equalization algorithm based on "data reuse" could be used to solve the problem of blind equalization of short burst signals

but its important properties hadn’t been studied.The ill-convergence caused by data reuse was analyzed and the restriction was given firstly

and secondly

the conditions of data reuse constant modulus algorithm reaching to the performance of long time signals equalization was analyzed in detail and gave the corresponding results.The validity of these analyses is proved by computer simulation.