利用matlab仿真软件，实现8QAM调制。在实现时采用正交调幅的方式,某星座点在I坐标上的投影去调制同相相载波的幅度,在Q坐标上的投影去调制正交载波的幅度,然后将2个调幅信号相加就是所需的调相信号。 已通过测试。

-Matlab simulation software to achieve 8QAM modulation. Implemented using quadrature amplitude modulation, phase carrier amplitude modulated by a constellation point in the projection coordinates, projection amplitude modulated orthogonal carriers in the coordinates of Q, then the sum of two amplitude modulated signals the required phase modulation signal. Has been tested.