基于命令集的空间光学遥感器功率特性分析方法  

Power characteristic analysis method of optical remote sensor based on command sets

作　　者：吴伟平[1,2] 金龙旭[1] 王栋[1] 孙天宇[1,2] 

机构地区：[1]中国科学院长春光学精密机械与物理研究所,吉林长春130033 [2]中国科学院大学,北京100049

出　　处：《红外与激光工程》2014年第5期1549-1554,共6页Infrared and Laser Engineering

基　　金：国家自然科学基金

摘　　要：为实时监视空间光学遥感器的工作状态并在其产生异常时自动告警,设计了基于遥感器工作命令集合的功率特性分析方法。通过采集和迭代不同命令集与功率间的对应关系,得到基于命令集的动态阀值函数。针对浪涌和命令的延迟等实际情况,优化了阀值函数,并应用于功率监控系统。该监控系统采用20Hz的功率信息采集频率,对某命令更新周期为512ms的空间光学遥感器12.5天的热循环实验过程进行监视,结果表明:该方法准确地监视了遥感器的状态,告警正确,无虚警现象,使空间光学遥感器的功率告警达到实用阶段。For monitoring the work states of optical remote sensor in real time and automatically alarming when the work states are abnormal, the power characteristic analysis method based on command sets of optical remote sensor was developed. By sampling and iterating the relationship between power and various command sets, the dynamic threshold function based on command sets was summarized. And the threshold function was optimized, since some actual conditions must be considered such as surge, command delay and so on. And the optimized threshold function was applied to the power monitor and control system. The system adopted 20 Hz sample frequency to monitor the power of optical remote sensor in the heat cycle experiment, which would last 12.5 days. The command refresh cycle was 512 ms of the optical remote sensor. The results show the method can exactly monitor states of optical sensor and alarm when the states are abnormal. That puts power alarm method of optical remote sensor into practice and has great value to tester.

关 键 词：功率特性分析 空间光学遥感器 告警 动态阀值 

分 类 号：TP277[自动化与计算机技术—检测技术与自动化装置]