Symbol Synchronization Capture Method on SFH-GMSK - PART II: The Capture Method

This paper applies the theoretical analysis result about the SFH-GMSK signal in the Part I companion paper that the differential demodulation GMSK signals and their phases both are periodic, and the period is integer multiple of symbol interval T_b during switching-frequency protecting code. Based on these, this paper as the Part II companion paper puts forward one symbol synchronization capture method based on SNR using the switching-frequency protecting code, and the capture time and probability of it are also particularly analyzed in this paper. The analysis indicates that this capture method is not only simple and convenient for digital realization, but also is rapid and effective. So the SFH communication can be established effectively.