【摘要】 基于 Rayleigh,Rice,Rice/lognormal三种不同的信道统计模型 ,给出了 QPSK调制方式在不同衰落信道中误码率公式的解析推导 ,得到了误码率的解析表达式。并给出了计算机仿真结果。同时在考虑仰角影响的情况下 ,对 QPSK调制信号在 Rice/lognormal信道中的误码性能进行了计算机仿真更多还原

【Abstract】 Based on the probability density function of receiving signal envelop (PDF), static bit error rate of QPSK and channel parameters, the bit error rate formula of QPSK in Rayleigh, Rice and Rice/lognormal channel respectively are derived, and the computer simulation results are given. Furthermore consideration on the angle of elevation, the simulation results of bit error performance of QPSK signal in Rice/lognormal channel are given.更多还原