陆地生态系统碳监测卫星日光诱导叶绿素荧光超光谱探测仪设计与验证  

The Solar-Induced Chlorophyll Fluorescence Imaging Spectrometer (SIFIS) onboard the Terrestrial Ecosystem Carbon Inventory Satellite:Design and Verification

作　　者：王伟刚[1] 胡斌[1] 杜国军[1] 段鹏飞[1] 井亚舟 李碧岑[1] 柯君玉[1] 郭永祥[1] 夏晨晖 安宁[1] 崔程光 李云飞[1] 崔博伦 伏瑞敏[1] 毛一岚 LIU Yuxiang WANG Weigang;HU Bin;DU Guojun;DUAN Pengfei;AN Ning;JING Yazhou;LI Bicen;KE Junyu;GUO Yongxiang;XIA Chenhui;LIU Yuxiang;CUI Chengguang;LI Yunfei;CUI Bolun;FU Ruimin;MAO Yilan(Beijing Institute of Space Mechanics&Electricity,Beijing 100094,China;China Academy of Space Technology,Beijing 100080,China)

机构地区：[1]北京空间机电研究所,北京100094 [2]中国空间技术研究院,北京100080

出　　处：《航天返回与遥感》2022年第6期68-78,共11页Spacecraft Recovery & Remote Sensing

基　　金：国家重大科技专项工程。

摘　　要：日光诱导叶绿素荧光超光谱探测仪(简称超光谱探测仪)是陆地生态系统碳监测卫星“句(gōu)芒号”四个有效载荷之一。超光谱探测仪是国际上首台专门设计探测太阳诱导植被荧光载荷,光谱范围670nm~780nm,光谱分辨率0.3nm,对地观测幅宽34km。为了保证探测精度,探测仪要求在10mW·m^(-2)·sr^(-1)·nm^(-1)输入光谱辐亮度下信噪比大于200。针对高精度定量化探测需求,国内首次采用高稳定双焦距望远光学系统设计,实现了光学系统的公差比传统设计低4倍,采用高性能AD量化器件和电路抑制设计实现513.1高信噪比,采用高稳定漫反射板(Quasi Volume Diffuser,QVD),实现在轨高稳定性能监测,采用间接控温实现0.08℃精密控温。文章给出了探测仪设计与实验室验证情况,并给出了外场试验结果和在轨初步反演结果。The Solar-Induced Chlorophyll Fluorescence Imaging Spectrometer(SIFIS) is one of the four payloads of the first terrestrial ecosystem carbon inventory satellite(TECIS-1),Gou Mang. SIFIS is the first payload to launch in orbit specifically designed to detect solar-induced chlorophyll fluorescence in the word.The SIFIS has a spectral range of 670~780nm, a spectral resolution of 0.3nm, and a swath of 34km. In order to assure the detection accuracy, the requirement of SNR is more than 200 at the level of 10W/m^(2)/sr/nm. The SIFIS is the first in China to adopt a highly stable optical system design technology, which realizes the tolerances up to 4 times lower than conventional designs. The SIFIS adopts high performance AD device and circuit suppression design to get a high SNR of 513.1, a highly stable QVD diffuser to monitor stability in orbit,indirect temperature control to realize 0.08℃ temperature stability. This report presents a summary of design and verification, as well as the results of the outfield tests and the initial in-orbit test and application.

关 键 词：日光诱导叶绿素荧光 光栅成像光谱仪 设计与验证 超光谱 陆地生态系统碳监测卫星 

分 类 号：TP73[自动化与计算机技术—检测技术与自动化装置]