for analog modulation signals, we use the envelop feature, the power spectrum of normalized-centered instantaneous amplitude and the power spectrum symmetry to classify AM, FM, DSB, USB, LSB;

• 对于模拟调制信号,我们利用信号包络特征,瞬时幅度中心归一化功率谱和功率谱对称性等参数相结合的方法实现AM、FM、DSB、USB、LSB信号的调制分类;