在瑞利衰落信道上,在多音干扰和加性高斯白噪声共存的条件下,对采用乘积合并接收(PCR)方法的差分跳频(DFH)通信系统的误符号性能进行了理论分析。为验证理论分析的正确性,进行了相应的计算机仿真,将采用PCR方法的误符号性能与采用线性合并接收(LCR)方法的误符号性能作了比较。结果证实,在瑞利衰落信道上,DFH通信系统采用乘积合并接收的方法要比采用LCR方法具有更好的抗多音干扰的性能。
The symbol error rate (SER) performance of the differential frequency hopping (DFH) communication system with a product-combining receiver (PCR) was analyzed over a Rayleigh-fading channel with multi-tone jamming (MTJ) and additive white Gaussian noise (AWGN). The analysing results were validated with the simulation. The comparisons among the various receivers showed that the DFH system with PCR achieved better anti-jam (AJ) performance than that with a linear-combining receiver (LCR).