A Method for FH Signal Network-station Sorting
Junna Shang · Journal of Hangzhou Dianzi University · 2009
Frequency hopping(FH) signal network-station sorting is a traditional difficult problem in electronic warfare domain.A method for FH signal networkstation sorting is proposed.First the unknown mixed signals are separated by FastICA algorithm.Then they are further processed using short-time Fourier transform(STFT) and image processing technology to achieve complete separation.Finally,the parameters of FH signals such as hopping duration,hopping timing,hopping time and hopping frequencies are estimated and FH signal network-station sorting is achieved.The two FH radio mixed signals of actual acquisition is simulated and the results show that the method of FH signal network-station sorting is good,reliable,efficient and fast.