This paper uses wavelet networks to realize multi-user signal detection in DS2CDMA system channels. In practice, the performance of traditional detectors (single-user matched filters) will deteriorate sharply when there are strong interference signals. Based on the MMSE (Minimum Mean2Square Error) linear detector principle, this paper uses adaptive wavelet networks to optimize the minimum mean square error criterion and effectively eliminate multiple access interference. Simulation results show that the multi-user detector based on wavelet networks can converge quickly and has resistance to near and far
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