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在瑞利衰落信道和MPSK数字调制情况下,采用一种近似的输出信噪比表达式,对EGC系统的比特误码率性能进行理论分析,推导了EGC系统比特误码率的一种近似理论解析式.该理论式的数值结果与蒙特卡洛仿真结果比较以及与选择合并和最大比率合并的理论数值结果比较均表明:在实际应用中,采用近似结果能基本替代EGC系统的比特误码率.
In the case of Rayleigh fading channel and MPSK digital modulation, an approximate output signal-to-noise ratio expression is used to theoretically analyze the bit error rate performance of an EGC system and derive an approximate theory of the bit error rate of the EGC system The numerical results of the theoretical formula are compared with the results of Monte Carlo simulation and the theoretical numerical results of the merger and the maximum ratio merger show that in practical applications the approximation results can basically replace the bit error rate of the EGC system .