A Blind Modulation Recognition Method under the Lower SNR

A higher order envelope characteristic J based method is proposed in this paper for the automatic modulation recognition. The higher order envelope characteristic J has a lot of characteristics such as the computational simplicity, no demand for prior information and good performance of suppressing the noise. Therefore it can recognize the signal modulations quickly and efficiently in the lower SNR and can be implemented real-timed and practically. Simulation results indicate that the performance of proposed method is much better than the classical envelope modulation methods.