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QAMModem
- 对离散信号序列进行16QAM调制，给出16QAM星座分布图，绘制32QAM调制信号的时域波形图和频域频谱特性图(The discrete signal sequence is modulated by 16QAM, and the 16QAM constellation distribution map is given. The time domain waveform of 32QAM modulation signal and frequency spectrum characterist