有关QPSK调制解调的仿真程序，包括基带输入波形及其功率谱、QPSK调制信号及其功率谱、AWGN信道输出及其功率谱、通过瑞利信道之前和之后的信号星座图

6)在高斯白噪声和瑞利衰落信道条件下的误码性能以及高斯白噪声的理论曲线，所有误码性能曲线在同一坐标比例下绘制-Relevant QPSK modulation and demodulation of the simulation program, including the baseband input waveform and its power spectrum, QPSK modulation signal and its power spectrum, AWGN channel output and its power spectrum, through the Rayleigh channel before and after the signal constellation of Figure 6) in high- Adams white noise and Rayleigh fading channel under the conditions of BER, as well as the theory of Gaussian white noise curve, all the BER performance curve in the same proportion of coordinates under the map