环境减灾二号A/B卫星红外相机在轨性能测试与稳定性评估  

On-orbit Performance Tests and Stability Evaluation of Infrared Cameras on HJ-2A/B Satellites

作　　者：孙德新[1,2,3] 柴孟阳 刘银年[1,2,3] 陈塞崎 崔璨璨[1] 孙纪文 林军 刘书锋 姚舜 冯雪飞[1,3] 周魏乙诺[1] 丛强 柯有龙 季诚胜 朱玉琼 徐君 SUN Dexin;CHAI Mengyang;LIU Yinnian;CHEN Saiqi;CUI Cancan;SUN Jiwen;LIN Jun;LIU Shufeng;YAO Shun;FENG Xuefei;ZHOU Weiyinuo;CONG Qiang;KE Youlong;JI Chengsheng;ZHU Yuqiong;XU Jun(Key Laboratory of Infrared System Detection and Imaging Technologies, Shanghai Institute of Technical Physics, Chinese Academy of Sciences, Shanghai 200083, China;Nantong Academy of Intelligent Sensing, Nantong, Jiangsu 226000, China;Qidong Zhongke Optoelectronic Remote Sensing Centre, Qidong, Jiangsu 226200, China;China Aerospace Science and Technology Corporation, Beijing 100048, China;DFH Satellite Co., Ltd., Beijing 100094, China;China Centre For Resources Satellite Data and Application, Beijing 100094, China)

机构地区：[1]中国科学院上海技术物理研究所,中国科学院红外探测与成像技术重点实验室,上海200083 [2]南通智能感知研究院,江苏南通226000 [3]启东中科光电遥感中心,江苏启东226200 [4]中国航天科技集团有限公司,北京100048 [5]航天东方红卫星有限公司,北京100094 [6]中国资源卫星应用中心,北京100094

出　　处：《航天器工程》2022年第3期83-91,共9页Spacecraft Engineering

基　　金：国家民用空间基础设施中长期发展规划。

摘　　要：环境减灾二号A/B卫星发射入轨后,已经在轨运行1年,期间对2颗卫星上的红外相机展开了一系列在轨测试及其性能评估工作。以2台红外相机获取到的在轨几何特性、辐射特性和在轨遥测等数据为基础,对其幅宽、空间分辨率、谱段间配准、传递调制函数、信噪比、辐射定标精度等指标参数进行全面测试和评估,并对扫描机构稳定性、制冷机工作稳定性、漫反射板反射率及系统稳定性进行评估。在轨性能测试与稳定性评估结果表明:2台红外相机在轨各项系统性能指标良好,工作稳定。HJ-2 A/B satellites have been sent into orbit for a year. The on-orbit performance and stability evaluation of the infrared cameras on both satellites are measured during operation. In this paper, based on the on-orbit data about characteristics of geometric and radiation obtained from both cameras, thoroughly tested results of many parameters of both infrared cameras, such as breadth, spatial resolution, band-to-band registration, modulation transfer function, signal to noise ratio, radiometric calibration accuracy, are evaluated for the stability of scanning mechanism and refrigerator operation as well as the reflectivity of diffuse plane and system stabi lity. The results of on-orbit performance tests and stability evaluation show that both infrared cameras have good on-orbit performance indexes and are working stably.

关 键 词：环境减灾二号A/B卫星 红外相机 在轨测试 几何特性 辐射性能 稳定性评估 

分 类 号：TN216[电子电信—物理电子学]