可编程存贮器在星上遥测仿真信号源中的应用

PROGRAMMABLE MEMORY APPLICATION IN SIMULATION SIGNAL SOURCE OF ON-BOARD SATELLITE TELEMETRY

介绍了利用新型的电可擦除可编程只读存贮器以及一些辅助电路组成一个遥测系统仿真信号源的数据流产生系统。该系统首先依据遥测系统所需信号,在计算机上进行编程,利用计算机辅助设计,产生出符合要求的遥测仿真数据以及数据格式。通过E^2PROM 编程卡,将仿真数据及格式写入到E^2PROM 可编程存贮器中,实现了遥测仿真数据流可编程设计和自动生成。实际应用表明:该系统较好地解决了以往信号源中数据流产生电路复杂、通用性差、灵活性差、修改数据流的数据和格式不方便等问题;此外,数据流的可靠性和稳定性大大提高,更好地满足遥测系统的要求。

In the paper a new telemetry simulation signal source systemwhich consists of E^2PROM (Electrically Erasable Programmable only Me-mory) and some auxilary circuits are introduced.Firstly,according to thesignals needed by the telemetry system,the system makes programming oncomputer and generates telemetry simulation data and data format by meansof CAD.Then E^2PROM programming card writes E^2PROM the simulationdata and data format.This system implements programmable design and au-tomatic generation of telemetry simulation data stream. In fact it has beenshown that the system can overcome traditional complexity poor generalityand difficulty in modification of data and format in data stream;in addi-tion,the reliability and stability of data stream are improved largely.Itcan be used in telemetry system better.