QAM调制下信道容量的计算，字符错误概率和符号错误概率曲线-QAM modulation in the calculation of channel capacity, character error rate and symbol error probability curve

The digital simulation system using MATLAB to illustrate the Quadrature Amplitude Modulation (QAM). QAM is a modulation scheme to convey two digital bit streams which can be converted to symbol signals by modulating the amplitudes and the phase of