说明：  到达过程是的泊松过程，单径或多径瑞利衰落信道仿真，pwm整流器的建模仿真，对信号进行频谱分析及滤波，采用波束成形技术的BER计算，GPS和INS组合导航程序。
(Arrival process is a Poisson process, Single path or multipath Rayleigh fading channel simulation, Modeling and simulation pwm rectifier The signal spectral analysis and filtering, By applying the beam forming technology of BER GPS and INS navigation program.)