一种基于PROM寻址的星载高可靠遥控译码器设计方法

摘要

文章针对当前卫星遥控子系统遥控译码器的几种主要实现方法的缺点，提出了一种基于PROM寻址的遥控译码器新型实现结构，该结构使用 PROM 作为遥控指令码的存储器件，具有很强的通用性和移植性，且PROM中存储数据与指令码内容不相关，具有很好的保密性，尤其是搭建译码电路的器件均为分立逻辑门器件，具有很高的空间辐照环境适应能力，达到了简单逻辑电路实现空间环境高可靠译码器的设计目的，给遥控译码器的设计提供了有益的参考。%In this paper,a new realization structure of remote control decoder model based on PROM addressing is pro-posed to overcome the disadvantages of the popular design method for the remote control subsystem of satellites. Using PROM as the remote control command code storage device,the structure has strong versatility and portability. The contents of the da-ta stored in PROM are not related to the remote control command code,which means very good confidentiality. In particular, all the devices to build the decoding circuit are discrete logic gate device,resulting in good space environment adaptability. The structure helps to reach the design objective of simple logic circuits to achieve high reliability of aerospace applications, providing a useful reference for the design of the remote control decoder.