Research On Receiver Technology Of Aircraft High Alphabet Safety Control System

With the continuous development of microelectronic technology,various highperformance integrated hardware has been gradually developed.Considering the working nature of the security control system and the particularity of the scene,higher requirements are imposed on the performance of the security control system.On the one hand,it is required that the receiver of the security control system has higher receiving sensitivity,and on the other hand,the algorithm of communication needs to meet the requirements of the missing instruction rate and the virtual instruction rate.The traditional security control system is mainly based on PCM-FM-DPSK,which has the advantages of easy implementation and mature technology,but it will relatively reduce its security.This paper studies the receiver technology of the aircraft’s High Alphabet security control system.Based on the analysis of the problems faced by the current security control system,combined with previous studies on the security control system,according to the actual project requirements,a new type of High Alphabet security control system receiver scheme was proposed.This article starts with the overall structure of the security control system.It introduces the on-board receiver,the execution board,the ground transmitter,and the binding equipment of the security control system,as well as the overall operation implementation plan.The hardware is introduced in detail.From the hardware,the problem of high sensitivity is solved.Next,the receiver principle in the security control system is introduced in detail.Matlab simulation of the new High Alphabet system and FPGA hardware implementation methods are mainly introduced.The differences and advantages of the traditional PCMFM-DPSK mode and the new High Alphabet system are analyzed.The principle of the receiver compatible with the two systems is proposed,and the two parameter writing methods of wired binding and wireless binding are introduced.From the communication algorithm,the problem of missed instruction rate and virtual instruction rate is solved.Finally,the test methods and experimental results of the function of the entire security control system and the sensitivity of the receiver are introduced.After testing,it can be seen that the security control system developed in this subject functions normally and the sensitivity meets the requirements.Through research on the technology of the aircraft’s High Alphabet security control system receiver,the two types of communication systems are compatible in the on-board receiver,and the parameters are adjusted as needed.It can be foreseen that on the premise of continuous innovation of communication algorithms in the future and continuous advancement of new high-efficiency integrated circuits,the security control system receiver technology can only successfully complete security control tasks in increasingly complex scenarios only by continuously updating.