Multi-band Multi-mode Software Radio Station Base With The Master Module Development,

Recently, with the great development of modern anti-jamming technology ,digital signal process and software radio technology ,the important development direction of anti-jamming communication radio which is based on software radio is to multi-band and multi-mode . In order to accord with the direction , our radio adopt software radio technology and direct demodulation from middle frequency .In this multi-band multi-mode software radio , I mainly take charge of the design of digital processing of the baseband and host controlling.And this paper discuss above questions in detail . This paper introduces some domestic and foreign the information of anti-jamming communication ,and the application of software radio in hopping frequency and direct spread system is discussed. Some base conceptions of spread spectrum system are mentioned. Then I introduce the detail of the system,including the flow of software and hardware for DSP & FPGA,every module of the system, the design of synchronization head pattern and normal hopping frequency pattern.Some graphs and circuit pictures are displayed and some troubles and bugs in the subject we had met are summarized.