Design of a Compact Transfer Radiometer for a Radiometric Benchmark Transfer Chain
In order to meet the high-accuracy calibration requirements of satellite remote sensing instruments, a transfer radiometer for an on-orbit radiometric benchmark transfer chain has been developed, which provides vital technical support for realizing the radiometric calibration uncertainty of the orde...
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| Format: | Article |
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MDPI AG
2022-09-01
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| Series: | Sensors |
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| Online Access: | https://www.mdpi.com/1424-8220/22/18/6795 |
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| author | Kaichao Lei Xin Ye Zhiwei Xia Nan Xu Shuqi Li Yachao Zhang Yuwei Wang Zhiwei Liu Zhigang Li |
| author_facet | Kaichao Lei Xin Ye Zhiwei Xia Nan Xu Shuqi Li Yachao Zhang Yuwei Wang Zhiwei Liu Zhigang Li |
| author_sort | Kaichao Lei |
| collection | DOAJ |
| description | In order to meet the high-accuracy calibration requirements of satellite remote sensing instruments, a transfer radiometer for an on-orbit radiometric benchmark transfer chain has been developed, which provides vital technical support for realizing the radiometric calibration uncertainty of the order of 10<sup>−3</sup> for remote sensing instruments. The primary role of the transfer radiometer is to convert from the spectral power responsivity traceable to a cryogenic radiometer to the spectral radiance responsivity and transfer it to the imaging spectrometer. At a wavelength of 852.1 nm, the combined uncertainty of the radiance measurement comparison experiment between the transfer radiometer and a radiance meter is 0.43% (k = 1), and the relative deviation of the measurements between the transfer radiometer and the radiance meter is better than 0.36%, which is better than the combined uncertainty of the radiance measurement comparison experiment. This demonstrates that the transfer radiometer can achieve radiance measurements with a measurement uncertainty better than 0.3% (k = 1). |
| first_indexed | 2024-03-09T22:35:35Z |
| format | Article |
| id | doaj.art-34d9fe381f4f47de9f8104694e726303 |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-03-09T22:35:35Z |
| publishDate | 2022-09-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-34d9fe381f4f47de9f8104694e7263032023-11-23T18:49:24ZengMDPI AGSensors1424-82202022-09-012218679510.3390/s22186795Design of a Compact Transfer Radiometer for a Radiometric Benchmark Transfer ChainKaichao Lei0Xin Ye1Zhiwei Xia2Nan Xu3Shuqi Li4Yachao Zhang5Yuwei Wang6Zhiwei Liu7Zhigang Li8Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, ChinaChangchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, ChinaChangchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, ChinaNational Institute of Metrology, Beijing 100029, ChinaChangchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, ChinaChangchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, ChinaChangchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, ChinaNational Institute of Metrology, Beijing 100029, ChinaChangchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, ChinaIn order to meet the high-accuracy calibration requirements of satellite remote sensing instruments, a transfer radiometer for an on-orbit radiometric benchmark transfer chain has been developed, which provides vital technical support for realizing the radiometric calibration uncertainty of the order of 10<sup>−3</sup> for remote sensing instruments. The primary role of the transfer radiometer is to convert from the spectral power responsivity traceable to a cryogenic radiometer to the spectral radiance responsivity and transfer it to the imaging spectrometer. At a wavelength of 852.1 nm, the combined uncertainty of the radiance measurement comparison experiment between the transfer radiometer and a radiance meter is 0.43% (k = 1), and the relative deviation of the measurements between the transfer radiometer and the radiance meter is better than 0.36%, which is better than the combined uncertainty of the radiance measurement comparison experiment. This demonstrates that the transfer radiometer can achieve radiance measurements with a measurement uncertainty better than 0.3% (k = 1).https://www.mdpi.com/1424-8220/22/18/6795transfer radiometercryogenic radiometerradiancecalibration |
| spellingShingle | Kaichao Lei Xin Ye Zhiwei Xia Nan Xu Shuqi Li Yachao Zhang Yuwei Wang Zhiwei Liu Zhigang Li Design of a Compact Transfer Radiometer for a Radiometric Benchmark Transfer Chain Sensors transfer radiometer cryogenic radiometer radiance calibration |
| title | Design of a Compact Transfer Radiometer for a Radiometric Benchmark Transfer Chain |
| title_full | Design of a Compact Transfer Radiometer for a Radiometric Benchmark Transfer Chain |
| title_fullStr | Design of a Compact Transfer Radiometer for a Radiometric Benchmark Transfer Chain |
| title_full_unstemmed | Design of a Compact Transfer Radiometer for a Radiometric Benchmark Transfer Chain |
| title_short | Design of a Compact Transfer Radiometer for a Radiometric Benchmark Transfer Chain |
| title_sort | design of a compact transfer radiometer for a radiometric benchmark transfer chain |
| topic | transfer radiometer cryogenic radiometer radiance calibration |
| url | https://www.mdpi.com/1424-8220/22/18/6795 |
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