说明：  QAM调制函数，对产生的二进制数进行qam调制，调制原理是对产生的二进制数进行串并转换，然后分为两路再进行qpsk调制
(QAM modulation function, the resulting binary number for QAM modulation, modulation principle is generated binary number and converted to string, and then further divided into two QPSK modulation)