Design Of A New Generation Of Border Defense Shortwave Radio And Implementation Of Key Technology

In the field of military communications, HF with simple equipment, long communication distance, strong anti-jamming etc has been widespread attention. Especially in the special border defense environment, shortwave radio as the main equipment are widely used in the transmission of voice, text, data and image information. However, because of the rapid development of modern communication technology, the harsh natural environment border defense troops stationed, and the complex social surroundings, the current border defense shortwave radio is unable to meet the new period communication needs in function and performance aspects. The radio needs to update to ensure smooth communication.Starting from the short wave radio history and present situation, the text introduces the basic principle of HF communication, discusses the development direction of shortwave radio, analyses the army demand of the new generation radio, puts forward a new generation of border defense shortwave radio design structure, detailed introduces each module function realization method and circuit design scheme, focuses on the realization of key technology, such as power supply design, special design of environmental adaptability, reliability thermal design, communication quality optimization design and software reliability.This topic is to design a new generation of border defense shortwave radio to realize the basic control function by using single chip computer, realize the digital channel, business digital and automatic control communication by using DSP technology, enhance anti jamming ability by using frequency hopping, adaptive frequency selection, burst communication and other means, make sure that the radio station in the bad electromagnetic environment and strong interference conditions can quickly and automatically establish communication link to reliable data communication and provide shortwave wireless data channel for data link system. In the project development phase, the simulation software is used to realize radio functions, to correct design flaws with online debugging, and to improve radio availability.