利用视频积累提高测量雷达星敏感器的灵敏度  

Improvement on detection sensitivi ty of star sensor in measureing radar by piling up video signal

作　　者：宋桂荣[1] 史泽林[2] 

机构地区：[1]沈阳工业大学理学院,辽宁沈阳110023 [2]中国科学院沈阳自动化研究所,辽宁沈阳110015

出　　处：《沈阳工业大学学报》2001年第5期426-428,共3页Journal of Shenyang University of Technology

摘　　要：探测灵敏度是测量雷达星敏感器的一项重要的技术指标.在设备体积重量等相关的基本条件受到制约的情况下,如何提高星敏感器的探测灵敏度是设计师们所必须面临的一个问题.提出了通过视频积累改善视频信噪比以提高探测灵敏度的有效的技术途径.在理论分析的基础上,采用高速器件设计了一套处理硬件,速度达到12MC视频速率,对工程应用的可行性提供了实验验证.Detection sensitivity is a key facto r of star sensor in measureing radar.On the conditions that size and weight of the equipment are restricted erqineers have face the problem of how to improre the detection sensistity of astor sensor.In this paper,a techni cal approach is presented which is effective to improve the SNR by piling u p video signal.Based on theoretical analysis,a processing hardware is re alized by fast devices with the speed up to12Mvideo signal.The feasibility of its real application is experimenta lly proved.

关 键 词：星敏感器 视频处理 雷达 探测灵敏度 视频积累 视频信噪比 

分 类 号：TN959[电子电信—信号与信息处理]