面向微小卫星的可见光地球敏感器设计  

Design of Visible Light Earth Sensor for Micro-Satellite

作　　者：郭振东[1] 王昊[2] 应鹏[1] 王俊[1] 金仲和[2] 

机构地区：[1]浙江大学信息与电子工程学系,杭州310027 [2]浙江大学航空航天学院微小卫星研究中心,杭州310027

出　　处：《传感技术学报》2012年第10期1400-1405,共6页Chinese Journal of Sensors and Actuators

基　　金：国家自然科学青年基金项目(60904090)

摘　　要：可见光地球敏感器是卫星姿态控制系统中一个重要的姿态测量器件。基于CMOS图像传感器,设计一套面向微小卫星的可见光地球敏感器,设计的该地球敏感器具有结构简单、体积小、重量轻、功耗低的特点。本文从地球敏感器的工作原理出发,提出了整个敏感器的构架,并完成了整套系统的软硬件设计。在图像处理过程中,采用一种新的快速Hough变换,极大提高了姿态测量的速度。测试结果表明该地球敏感器的测量精度约为0.1°,很好满足了微小卫星姿控系统对精度的要求。Visible light earth sensor is an important attitude measurement device in the satellite attitude control system.Based on CMOS image sensors,a design of visible light earth sensor for micro-satellites is introduces,and such earth sensor has the features of simple structure,small size,light weight and low power consumption.According to the theory of earth sensors,this paper presents its entire architecture and completes the hardware and software design.During the course of image processing,a new fast algorithm of Hough transform is adopted,which has greatly raised the speed of attitude measurement.The experimental results reveal that the earth sensor can reach a measurement precision of 0.1°,which meets the requirement of the attitude control system of micro-satellites.

关 键 词：地球敏感器 微小卫星 CMOS图像传感器 HOUGH变换 

分 类 号：V488.2[航空宇航科学技术] TP212.1[自动化与计算机技术—检测技术与自动化装置]