本文讨论了QPSK在Rayleigh信道中的误码率性能，包括理论Rayleigh模型和AWGN（Additive White Gaussian Noise）下的误码率，并与仿真结果进行了比较。模拟信号通过瑞利信道进行调制并添加AWGN。然后对Rayleigh信道进行分频解调，并对误差进行统计，得到QPSK的误码率性能
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