【摘要】 研究了将混合遗传算法应用于直接序列码分多址扩频通信的多用户检测 ,先给出了在异步高斯信道下解调扩频信号的结构框图 ,然后分析了用混合遗传算法进行多用户检测的理论依据和实际性能。仿真结果表明无论是抗多址干扰还是抑制远近效应 ,基于混合遗传算法的检测器都明显优于传统检测器 ,且其性能非常接近最佳检测器。更多还原

【Abstract】 Study is conducted on the application of Hybrid Genetic Algorithm (HGA) to the multiuser detection with DS-CDMA spread spectrum communication.The schematic diagram is presented for the demodulation of spread spectrum signals in asynchronous Guassian Channels.An analysis is then given to the theoretical basis and practical performance of multiuser detection using HGA.The emulation results have shown that HGA-based detector is obviously superior to the conventional one in terms of both the resistance on the multiple access interference and the mitigation of near-rar effects.Its performance is chose to the optimal detector.更多还原