Ultrashort Wave Jump Expansion Of The Mixed Anti-jamming Radio Frequency Hopping Synchronization And Baseband Frame Structure Design And Implementation

Direct-sequence/Frequency hopping technique has important purpose in military communication and civil mobile communication area. Software radio technique developed so rapidly that it is very useful to implement of very high frequency (VFH) multimode anti-jamming DS/FH radio on digital general platform by software radio ideology.The paper introduced the principle of software radio, the application of software radio, the development of software radio first, and then used the technique in our radio. The synchronization of frequency hopping method referenced the JTRS radio system of USA military, and designed a synchronization method used in our radio include creating the frequency hopping map and the base band frame architecture in frequency hopping mode. The paper also analyzed the synchronization capability on theory. It has been proved correct on theory by showing the false probability, capture probability and the synchronization time. It has also been proved correct in practice by testing with cooperator.The paper analyzed the character of our radio and introduced the procedure of designed base band frame architecture. It showed the application of channel coding in our radio, and encode/decode method implemented in DSP. On theory, the paper analyzed the coding gain of the channel coding.The character of our radio is the flexibility, standardization and modularization by application of software radio theory. The digital module of the radio was constructed by high performance DSP+FPGA platform. The DSP was produced by TI. Programmed in integrated development environment named CCS, FPGA was selected in XILINX's production, and then programmed in integrated development environment ISE.This paper based on the previous achievement, and researched in frequency synchronization. It has get obvious promotion the performance index of radio in testing with cooperator.