Design And Implementation Of Modular Short Wave Radio

Short wave radio has been widely used in the field of communication because of its simple structure,long distance and strong anti-interference ability.Especially in a variety of harsh electromagnetic and climatic environment,short wave radio often becomes the first choice for the transmission of voice,data,text,images and other information,and plays an important role.With the modular design of the avionics system,the modular design concept of the short wave radio has also come into being.In the face of the present situation that the theory and practice has been developed in foreign countries,combined with the technology accumulation and modular design concept of the enterprise in the short wave radio,We have developed a modularized,small size,light weight and full-featured short wave radio.Based on the basic theory and modular design idea of short wave radio communication,this paper analyzes the demand target of the R & D of this radio station,and begins with modular design,and determines the general design principle.The radio is divided into three single function independent modules,the main technical indicators of the radio are analyzed,and each index is decomposed and allocated to each unit.The circuit design process of each unit is introduced,and the testability design of the radio station is expounded in detail.Through the platform,the radio achieves the maximum transplantation of related software and completes the simulation analysis.Finally,radio station test is emphasized.In this project the modular shortwave radio uses the FPGA+ARM technology platform to control all the function modules,uses DSP technology platform to realize digital RF,digital business.The application of frequency adaptive technique and frequency hopping communication strengthens the anti-interference performance of communication.In complex electromagnetic interference environment,the radio station can quickly and reliably finishes communication tasks.In the process of R & D of this radio station,I mainly responsible for the modularization of the whole radio,the design of the work flow of the radio,the analysis of the main index,the programming of the interface protocol of each module,the test design,the simulation analysis,the radio test and the environment test.Each functional unit design is completed by the project team members on the basis of the existing mature software and hardware design.