Implementation of Synchronization for HF Time Hopping and Frequency Hopping Communication System Based on FPGA

The HF signal that uses time hopping and frequency hopping technology is very covert,and has a strong anti-jamming and anti-intercept capability,because of its changing frequency and pseudo-random signal sending time,but the time hopping technology will lead to the extension of the total sending time.To shorten the sending time,a new synchronization method is proposed.The frame synchronization sequence corresponds to the time hopping and frequency hopping pseudo-random code one by one,and sliding window correlation detection is used for synchronization.This synchronization system is implemented with FPGA and simulation is performed.