The recognition basic modulation styles(DSB,FM,PM,2ASK,2FSK and 2PSK) is discussed by using characteristic parameter and a computer simulation is made on communication signals in Gaussian hot noise.

• 着重讨论了利用特征参数对几种基本调制制式(DSB、FM、PM、2ASK、2FSK、2PSK)的自动识别问题；对叠加了高斯白噪声的通信信号的自动识别进行了计算机仿真.