硬限幅，EVM计算，PAPR计算，QAM信号产生。-hard limited without firlter matlab simulation,EVM calculation,PAPR calculation,QAM source generation.

常用调制信号的EVM估计代码总结，例如，4倍的QPSK调制的EVM计算，16倍QAM调制的EVM计算(The EVM estimation code of the commonly used modulation signal is summarized, for example, 4 times the QPSK modulation of the EVM calculation, 16 times the QAM modulation of the EVM calculation)