Description: In this paper , we discuss and analyze the variable step2size adaptive algorithm(VSSLMS) ,in which the descent
of it s convergence speed leads to the reduction of performance when input signals are heavily correlated . As a result , we
propose an uncorrelated variable step2size normalized LMS adaptive algorithm. Due to the principle of correlation ,the algo2
rithm can achieve good performance. The simulations agree to the theoretical analysis.
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