Analysis of the Wavelet Adaptive Algorithm in Smart Antenna System for 3G

This article is based on the analysis of traditional LMS algorithm, replacing the previous moment gradient with the current one is to be modified LMS (MLMS) algorithm. In order to improve its convergence rate, we proposed the algorithm based on wavelet transform. Processed by the wavelet transform, the correlation of the signal will decline, the convergence speed will improve, and also to the signal de-noising. The simulation results show that the algorithm has good stability, fast convergence rate. Under the big step factor it can also be diminished, and also meets the real-time requirements. At the same time, we do the simulation of the algorithm applied in the smart antenna system, the results show that the system has a smaller and stable bit error rate.