文章运用全概率分析和多维分布相结合的方法,在同时考虑热噪声和部分频带高斯噪声干扰的前提下,对多跳/符号的非线性合并分集接收系统的误比特率性能进行了精确分析。文章在最后借助Labview对系统在最坏部分频带干扰下的性能,以及时间分集的抗干扰性能进行了仿真,仿真结果表明在一定信干比的范围内时间分集能带来系统性能的改善。 By using a combination of full probability analysis and multidimensional distribution, this paper analyzes the bit error rate (BER) performance of multi-hop / symbol non-linear combined diversity receiving system while considering the thermal noise and partial band Gaussian noise interference. At last, the performance of the system in the worst part of the frequency band interference and the anti-jamming performance of time diversity are simulated by Labview. The simulation results show that the time diversity can improve the system performance within a certain signal-to-interference ratio.