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分析了无线衰落信道的基本特性,利用分集接收技术改善传输信号的信噪比。在空间分集技术领域进行了理论上的分析和基本模型的建立,计算出了各模型的信噪比及其改善倍数,并对比分析。采用基本的数字信号处理器及所需转换芯片进行数据接收系统的构建,以实现多支路接收信号提高信噪比的功能。
The basic characteristics of the wireless fading channel are analyzed, and the signal-to-noise ratio of the transmitted signal is improved by using the diversity receiving technology. In the field of space diversity technology, the theoretical analysis and the establishment of the basic model are carried out. The signal to noise ratio and the improvement factor of each model are calculated and compared. The basic digital signal processor and the required conversion chip data reception system for the construction, in order to achieve multi-branch receive signals to improve signal-to-noise ratio function.