基于光电位置传感器的发射轨道空间几何坐标一致性校正系统设计  

Design of Launch Orbits Spatial Geometry Coordinate Coherence Calibration System Based on Positive Sensitive Detector

作　　者：荣四海[1] 沈华[1] 朱日宏[1] 黄亚[1] 王小锋[1] 卞殷旭[1] 

机构地区：[1]南京理工大学电子工程与光电技术学院,江苏南京210094

出　　处：《中国激光》2012年第9期141-145,共5页Chinese Journal of Lasers

基　　金：国家自然科学基金(40901165);民用航天“十二五”预先研究项目;中央高校基本科研业务费专项资金(274805)资助课题

摘　　要：在现代发射轨道空间弹丸飞行姿态研究中,通过轨道上的多组阴影相机基站瞬态捕捉弹丸姿态图像数据,对图像数据进行处理计算可以获得弹丸的飞行轨迹数据。因此,阴影相机的空间坐标校正对飞行姿态数据的获取以及测量精度有着重要的影响。针对传统悬线型基准系统校正误差大以及因每组相机间独立校正而导致的空间几何坐标校正一致性低的问题,基于光电位置传感器和光学杠杆原理,设计了新型阴影相机空间几何坐标校正系统。阐述了该系统的理论背景、组成以及调校方法,并对该系统进行了实验分析。实验结果表明,采用该系统校正阴影相机俯仰角精度优于10″,单组相机校正实验测量结果误差不超过0.06mm,多组相机校正一致性误差不超过0.1mm。In the research of bullet flight attitude in modern launch orbits space,the transient attitude of the bullet is captured by several groups of shadow cameras.By image processing and calculation,the whole flight data can be known.In order to acquire accurate measured data,it is critical to calibrate spatial geometrical coordinates.Considering the low precision and poor calibration coherence of traditional grid calibration system,a new type of shadow camera calibration system based on positive sensitive detector and optical lever is researched.The principle background,components and adjusting means are illustrated,and the experimental consequence is analyzed.The results indicate that the calibration accuracy of angle is better than 10″,and the measurement error is less than 0.06 mm.The multi-group cameras′ calibration coherence error is less than 0.1 mm in use with this new system.

关 键 词：测量 弹丸姿态测量 光学杠杆 坐标校正 位置敏感探测器 

分 类 号：TN206[电子电信—物理电子学] TH741[机械工程—光学工程]