The Recognition and Parameter Estimation of Hybrid Modulation Signal Combined with FSK and BPSK
Song Jun①② Liu Yu① Wang Xu-dong①
①(College of Electronic and Engineering, Nanjing University of Aeronaut & Astronaut, Nanjing 210016, China) ②(College of Information Science & Technology, Nanjing Forestry University, Nanjing 210037, China)
Abstract：A recognition and parameter estimation algorithm for hybrid modulation signal combined with Frequency Shift Keying and Binary Phase Shift Keying (FSK/BPSK) is proposed. First, the models of the considered signals and their unwrapped phase are presented. Then, a recognition algorithm is presented for signals including FSK/BPSK hybrid modulation signal, BPSK signal and FSK signal based on instantaneous frequency by utilizing binary tree, and the thresholds of recognition based on Neyman-Pearson (N-P) criterion are discussed and analyzed in detail. Finally, the parameter estimation of FSK/BPSK signal is implemented. Simulation results indicate that the proposed algorithm possesses fine recognition performance and estimation accuracy in lower SNR levels.
宋军, 刘渝, 王旭东. FSK/BPSK复合调制信号识别与参数估计[J]. 电子与信息学报, 2013, 35(12): 2868-2873.
Song Jun, Liu Yu, Wang Xu-Dong. The Recognition and Parameter Estimation of Hybrid Modulation Signal Combined with FSK and BPSK. , 2013, 35(12): 2868-2873.
2013, Vol. 35 
