Calibration and Calculation of Polarization Lidar
Abstract Although polarization lidar technology has been widely used to detect depolarized particles, many difficulties still exist in measuring accurate values for the depolarization ratio. This ratio is basically related to the difference between the optical and the electronic gain of the lidar�...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
American Geophysical Union (AGU)
2019-07-01
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| Series: | Earth and Space Science |
| Subjects: | |
| Online Access: | https://doi.org/10.1029/2019EA000609 |
| _version_ | 1818836326526484480 |
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| author | Jinhong Xian Dongsong Sun Wenjing Xu Chongguo Tian Qingzhi Tan Yuli Han Shaochen Yang |
| author_facet | Jinhong Xian Dongsong Sun Wenjing Xu Chongguo Tian Qingzhi Tan Yuli Han Shaochen Yang |
| author_sort | Jinhong Xian |
| collection | DOAJ |
| description | Abstract Although polarization lidar technology has been widely used to detect depolarized particles, many difficulties still exist in measuring accurate values for the depolarization ratio. This ratio is basically related to the difference between the optical and the electronic gain of the lidar's channels, the polarization purity of the laser pulse, and the error in the alignment between the laser's polarization plane and the polarizer. We propose here an algorithm for the calibration and calculation of polarization lidars. Numerical simulations showed that the depolarization ratio profile retrieved from the proposed algorithm agrees well with the simulated profile. The proposed algorithm no longer requires the laser source to be linearly polarized. Instead, the light polarization can be elliptical or random. During the installation process, the polarization of the detector is no longer required to be parallel or perpendicular to the polarization direction of the laser source and can be done in any direction. |
| first_indexed | 2024-12-19T03:04:50Z |
| format | Article |
| id | doaj.art-1d78a113612744d5ab27dd9b118ae3a5 |
| institution | Directory Open Access Journal |
| issn | 2333-5084 |
| language | English |
| last_indexed | 2024-12-19T03:04:50Z |
| publishDate | 2019-07-01 |
| publisher | American Geophysical Union (AGU) |
| record_format | Article |
| series | Earth and Space Science |
| spelling | doaj.art-1d78a113612744d5ab27dd9b118ae3a52022-12-21T20:38:07ZengAmerican Geophysical Union (AGU)Earth and Space Science2333-50842019-07-01671161117010.1029/2019EA000609Calibration and Calculation of Polarization LidarJinhong Xian0Dongsong Sun1Wenjing Xu2Chongguo Tian3Qingzhi Tan4Yuli Han5Shaochen Yang6School of Earth and Space Sciences University of Science and Technology of China Hefei ChinaSchool of Earth and Space Sciences University of Science and Technology of China Hefei ChinaDarsunlaser Technology Co., Ltd. Shenzhen ChinaCAS Key Laboratory of Coastal Zone Environmental Processes and Ecological Remediation Yantai ChinaDarsunlaser Technology Co., Ltd. Shenzhen ChinaSchool of Earth and Space Sciences University of Science and Technology of China Hefei ChinaDarsunlaser Technology Co., Ltd. Shenzhen ChinaAbstract Although polarization lidar technology has been widely used to detect depolarized particles, many difficulties still exist in measuring accurate values for the depolarization ratio. This ratio is basically related to the difference between the optical and the electronic gain of the lidar's channels, the polarization purity of the laser pulse, and the error in the alignment between the laser's polarization plane and the polarizer. We propose here an algorithm for the calibration and calculation of polarization lidars. Numerical simulations showed that the depolarization ratio profile retrieved from the proposed algorithm agrees well with the simulated profile. The proposed algorithm no longer requires the laser source to be linearly polarized. Instead, the light polarization can be elliptical or random. During the installation process, the polarization of the detector is no longer required to be parallel or perpendicular to the polarization direction of the laser source and can be done in any direction.https://doi.org/10.1029/2019EA000609polarization lidarcalibrationcalculationdepolarization ratio |
| spellingShingle | Jinhong Xian Dongsong Sun Wenjing Xu Chongguo Tian Qingzhi Tan Yuli Han Shaochen Yang Calibration and Calculation of Polarization Lidar Earth and Space Science polarization lidar calibration calculation depolarization ratio |
| title | Calibration and Calculation of Polarization Lidar |
| title_full | Calibration and Calculation of Polarization Lidar |
| title_fullStr | Calibration and Calculation of Polarization Lidar |
| title_full_unstemmed | Calibration and Calculation of Polarization Lidar |
| title_short | Calibration and Calculation of Polarization Lidar |
| title_sort | calibration and calculation of polarization lidar |
| topic | polarization lidar calibration calculation depolarization ratio |
| url | https://doi.org/10.1029/2019EA000609 |
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