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在无线通信中,多径衰落严重影响信号传输的质量。分集接收技术是有效对抗多径衰落、提高信号接收增益、改善通信质量的有效方法之一。瑞利信道、莱斯信道是无线通信信道的主要模型,自身有很多特性。选择合并和等增益合并是常用的合并方式,各自有其优越性能。根据信道特征,将两种合并方式相结合的切换合并,在仿真分析后验证了在接收机应用中的可行性。虽然提高了设备要求,但也加宽了接收机的应用范围。
In wireless communications, multipath fading seriously affects the quality of signal transmission. Diversity reception technology is effective against multipath fading, improving signal reception gain and improving communication quality. Rayleigh channel, Rice channel is the main model of wireless communication channel, itself has many characteristics. Merger and other options such as the merger is commonly used in the merger, each with its superior performance. According to the characteristics of the channel, the combination of the two combined merger switching mergers, the simulation analysis verified the feasibility of the receiver applications. Although increasing the equipment requirement, but also widened the receiver the application scope.