Dsp-based Avionics Communications Systems Research

High speed and reliable technology of data communication is important to the study of avionics totalication system. In this paper, author aim at the data bus communication system requests of compatibility, communication speed, reliability,anti-jamming and study the avionics communication system.In this paper, an avionics communication system based on DSP is designed by the means of modularization, computer interface technology, DSP technology, intelligent correction and anti-jamming technology, ARINC429 bus and LONWORKS bus technology are used to realize the system. This system has the good compatibility with data format of multiform data buses such as ARINC429 bus, LONWORKS bus and so on.The hardware and software design of system are discussed in detail. The realization of CRC algorithm in software, which achieve the function of intelligent correction is given. The anti-jamming design is realized on hardware and software. Several experiments have been analyzed to verify the availability of the system presented in this paper. Finally, the main work of the paper is summarized, and suggestions are given for future study.