摘要
红外地球敏感器是卫星控制分系统的重要姿态测量部件,提供卫星相对于地球辐射圆盘俯仰和滚动方向的姿态信息。为进行新一代微型红外地球敏感器研制,开展了基于FPGA的微型红外热电堆探测器空间应用研究,介绍了红外热电堆技术,采用探测器技术指标,对探测器的圆环效应、温度补偿、响应补偿、非均匀校正、盲元处理进行了研究,实现了红外地球敏感器图像处理系统的方案设计与FPGA设计。测试结果表明,姿态测量偏差小于0.2°,基于FPGA微型红外热电堆探测器设计,能够应用于卫星姿态测量,具有小型化、低功耗、低成本特点,具有替代传统机械扫描式红外地球敏感器潜力,具有广阔的应用前景。
Infrared earth sensors are an important attitude measurement component of satellite control subsystems.They provide the information about the satellite’s attitude relative to the pitch and roll direction of the earth radiation disk.The infrared detector is the key part of such a sensor.In this paper,we discuss research on micro-infrared thermopile detectors for space applications.Infrared thermopile technology and the technical index of the detector are introduced.The ring effect,temperature compensation,response compensation,nonuniformity correction,and blind element processing of the detector are studied.The scheme design and field programmable gate array(FPGA)design of an infrared earth sensor image processing system are described.Test results show that system’s attitude measurement deviation is less than 0.2°.Thus,FPGA-based micro-infrared thermopile detectors based on FPGA can be used for attitude measurement in low earth orbit satellites.Offering miniaturization,low power consumption,and low cost,this technology has the potential to replace traditional mechanical scanning infrared earth sensors and has broad application prospects.
作者
刘奇
盖芳钦
叶有时
刘波
施蕾
LIU Qi;GAI Fangqin;YE Youshi;LIU Bo;SHI Lei(Beijing Institute of Control Engineering,Beijing 100190,China)
出处
《红外技术》
CSCD
北大核心
2020年第7期611-617,共7页
Infrared Technology
基金
航天系统部装备部课题(30508030101)。
