A method for monitoring solar diffuser's bidirectional reflectance distribution function degradation in geostationary orbit
文献类型：期刊论文
| 作者 | Wang Wei1,2 ; Zhang Li-Ming1; Xu Weiwei1; Si Xiao-Long1,2; Huang Wen-Xin1
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| 刊名 | EUROPEAN JOURNAL OF REMOTE SENSING
 |
| 出版日期 | 2020 |
| 卷号 | 53 |
| 关键词 | Remote sensing calibration the reflective solar bands solar diffuser reflectance degradation monitoring BRDF |
| DOI | 10.1080/22797254.2020.1747948 |
| 通讯作者 | Wang Wei(18255120226@163.com) ; Zhang Li-Ming(lmzhang@aiofm.ac.cn) |
| 英文摘要 | The advanced geosynchronous radiation imager (AGRI) is a geostationary sensor whose reflective solar band is calibrated by a solar diffuser (SD). The SD bidirectional reflectance distribution function (BRDF) degrades over time in the space environment. This degradation can be measured through the SD reflectance degradation monitor (SDRDM). The SDRDM calibration data are normally collected by three filtered detectors, covering wavelengths from 0.45 mu m to 0.90 mu m. The SD reflectance degradation can be derived by trending the ratio of the background-subtracted solar-angle corrected SDRDM sun and SD view responses. The conventional monitoring methods rely on geometry factors of the sun view port and the relative BRDF of the SD, and these parameters can cause uncertainties. Aiming at these uncertain factors, the present study collects calibration data at the same solar angle. This method compares the detector digital counts obtained at different times but with the same solar angle. Consequently, it cancels out the angle-dependent parameter to obtain the ratio of the BRDF degradation factors. The obtained results show that monitoring uncertainty of the proposed method is less than 0.18%, while the corresponding monitoring error is less than 0.66%. This method can be applicated in SD's BRDF monitoring. |
| WOS关键词 | RADIOMETRIC CALIBRATION ; MODIS ; SPECTRALON ; BANDS |
| 资助项目 | National Natural Science Foundation of China[41601388] |
| WOS研究方向 | Remote Sensing |
| 语种 | 英语 |
| WOS记录号 | WOS:000528754900001 |
| 出版者 | TAYLOR & FRANCIS LTD |
| 资助机构 | National Natural Science Foundation of China |
| 源URL | [http://ir.hfcas.ac.cn:8080/handle/334002/103359]  |
| 专题 | 中国科学院合肥物质科学研究院 |
| 通讯作者 | Wang Wei; Zhang Li-Ming |
| 作者单位 | 1.Chinese Acad Sci, Anhui Inst Opt & Fine Mech, Key Lab Opt Calibrat & Characterizat, Hefei, Anhui, Peoples R China 2.Univ Elect Sci & Technol China, Hefei, Anhui, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang Wei,Zhang Li-Ming,Xu Weiwei,et al. A method for monitoring solar diffuser's bidirectional reflectance distribution function degradation in geostationary orbit[J]. EUROPEAN JOURNAL OF REMOTE SENSING,2020,53. |
| APA | Wang Wei,Zhang Li-Ming,Xu Weiwei,Si Xiao-Long,&Huang Wen-Xin.(2020).A method for monitoring solar diffuser's bidirectional reflectance distribution function degradation in geostationary orbit.EUROPEAN JOURNAL OF REMOTE SENSING,53. |
| MLA | Wang Wei,et al."A method for monitoring solar diffuser's bidirectional reflectance distribution function degradation in geostationary orbit".EUROPEAN JOURNAL OF REMOTE SENSING 53(2020). |
入库方式： OAI收割
来源：合肥物质科学研究院
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