摘要
“资源一号”02E卫星配置的红外相机采用红外探测器组件,其阵列的规模达到了8000像元。该红外探测器技术难度大,实施工艺复杂,需要突破超长线列芯片微组装技术、高性能长波材料及器件制备技术等一系列关键技术。“资源一号”02E星不具备投产验证产品进行验证的条件,因此采用一步正样的研制模式。对研制风险较大的红外相机来说,需要在方案阶段利用现有的光学系统构建实验装置,对探测器噪声等效温差、MTF等重要性能指标进行等效验证,早期发现红外探测器的不足,提升相机的定量化成像水平。文章在“委内瑞拉遥感二号”(简称“委遥二号”)卫星光学系统的基础上,对该系统与02E星红外相机的差异进行了比对分析,提出了实验参数的优化更改方案。构建了以“委遥二号”相机光学系统与02E星红外探测器组成的实验验证系统,对噪声等效温差和MTF等关键指标进行了实验验证。实验表明,文章提出的实验方法具有较好的测试等效性和精度,可以用于红外探测器在方案阶段的早期指标测试验证。
The infrared detector assembled in ZY-102E camera is domestically produced with size of 8000 pixels,which has the largest size among all domestically-produced detectors.The detector development is complicated and difficult,and many critical technologies should be overcome,including large size linear micro assembly,high performance long wavelength material and detector manufacturing.Because ZY-102E satellite adopts‘one step to flight’model in development,no conditions existed for developing verification model.Especially,considering large development risk for the Infrared camera,it is important to equally verify the key performances such as NETD,MTF etc.by establishing a verification system in laboratory based on the existed conditions during the proposal phase for finding out deficiencies at early time to improve quantification level of performance.The paper makes the analysis for differences between VRSS-2 satellite infrared camera and 02E satellite camera based on the optical system of VRSS infrared camera,furthermore making a proposal for modification of parameters verification.The verification introduces the test methods of NETD and MTF of infrared detector by constructing a system combined VRSS-2 satellite optical system and 02E satellite infrared detector.The verification results prove the method mentioned in the paper has better performance in test equivalence and precision,which can be adopted during early verification of the infrared detector at proposal phase.
作者
安萌
梁德印
聂云松
李昊谦
韩波
AN Meng;LIANG Deyin;NIE Yunsong;LI Haoqian;HAN Bo(Beijing Institute of Spacecraft System Engineering,Beijing 100094,China;Institute of Remote Sensing Satellite,Beijing 100094,China;Beijing Institute of Space Mechanics&Electricity,Beijing 100094,China)
出处
《航天返回与遥感》
CSCD
北大核心
2021年第4期37-45,共9页
Spacecraft Recovery & Remote Sensing
基金
自然资源部自然资源红外卫星应用系统建设(2043STC41545)。
关键词
红外探测器
成像测试验证
噪声等效温差
等效验证
“资源一号”02E
卫星
infrared detector
imaging test and verification
noise equivalent temperature difference(NETD)
equivalence verification
ZY-102E satellite
