Research And Implementation Of Distributed Communication Control System Based On FPGA

With the development of avionics technology, the airborne avionics becomemore diversified and complicated, which put forward higher requirements to newairborne avionics, therefore the intelligent and high efficiency of the onboard equipmentcontrol system is one of the hot topic of new generation avionics system research.An FPGA-based distributed intelligent communication control system is designedin this paper as the foundation of the airborne communication technology and the dataprocessing technology. The research first focuses on through full use of FPGA internalresources to achieve the ARINC-429aircraft data bus communication, reduce the use ofexternal device and reduce the complexity of the system; meanwhile, researching theerror control technique on the airborne fieldbus communication system, with thereal-time and high reliability requirements, this system uses Reed-Solomon errorcorrection code to realize the error control function. Followed by, lucubrate the LZWcompression algorithm, and combined with the characteristics of communicationcontrol system, a modified LZW algorithm is put forward, in the actual data test, theratio of data compression performance reduced about0.04. Afterwards, combined withthe least square theory of curve fitting method is used to the complex nonlinearoptimization data calculations and data processing implementation based on FPGA, thecurve fitting error within0.5%. Finally, introduces the implementation of entire system,the hardware and software of each module are tested in laboratory environment.