全极化微波辐射计姿态对观测亮温的影响及消除

陆文; 严卫; 王蕊; 王迎强

doi:10.7498/aps.61.018401

摘要

针对全极化微波辐射计精确探测的需求, 研究了辐射计姿态对于观测亮温的影响以及亮温误差校正. 建立了姿态偏移与观测入射角以及极化旋转角的关系, 模拟了观测亮温随观测入射角以及极化旋转角波动的变化; 仿真了姿态偏移情况下的辐射计原始观测亮温；运用一种基于辐射传输模型的姿态补偿方法, 以垂直极化亮温和第三Stokes参数亮温为例, 对原始观测亮温展开误差校正. 研究显示, 该方法能够有效去除辐射计姿态偏移对观测亮温造成的影响, 校正结果满足辐射计数据预处理的误差精度要求.

关键词:

Abstract

In order to meet the requirement of accurate detection for polarimetric microwave radiometer, in this paper, we study on the influence of attitude on brightness temperatures received by the radiometer. Correction for brightness temperatures errors is also analyzed. The relationship between the misspecification of the attitude and the incidence angle together with polarization rotation angle is established. The variation of brightness temperatures with the change of incidence angle and polarization rotation angle is simulated. We simulate the original observational brightness temperatures of the radiometer. A method based on the radiative transfer model for compensating attitude offset to correct brightness temperatures errors is presented. Taking vertical brightness temperature and the third Stokes parameter brightness temperature for example, our method can eliminate the influence of attitude offset on the observation of brightness temperatures effectively, the result can satisfy the accuracy requirement of data preprocessing for polarimetric microwave radiometer.

Keywords:

作者及机构信息

1.
解放军理工大学气象学院, 江苏南京 211101

基金项目: 国家自然科学基金(批准号: 41076118)资助的课题.

Authors and contacts

1.
Institute of Meteorology, People's Liberation Army University of Science and Technology, Nanjing 211101, China

Funds: Project supported by the National Natural Science Foundation of China (Grant No. 41076118).

参考文献

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[14]	Corbella I, Gasiewski A J, Klein M, Piepmeier J R 2001 IEEE Trans. Geosci. Remote Sens. 39 193
[15]	Guo G J, Su L, Bi SW2005 Acta Phys. Sin. 54 2448 (in Chinese) [郭冠军, 苏林, 毕思文 2005 风成海面的极化辐射 54 2448]
[16]	Brown S T, Ruf C S, Lyzenga D R 2006 IEEE Trans. Geosci. Remote Sens. 44 611
[17]	Wang Z Z 2005 Ph. D. Dissertation (Beijing: Center for Space Science and Applied Research, Chinese Academy of Sciences) (in Chinese) [王振占 2005 博士学位论文 (北京: 中国科学院空间科学与应用研究中心)]
[18]	Xie T, He C, Perrie W, Kuang H L, Zou G H, Chen W 2010 Chin. Phys. B 19 024101
[19]	Purdy W E, Gaiser P W, Poe G A 2006 IEEE Trans. Geosci. Remote Sens. 44 496
[20]	Yan W, Lu W, Shi J K, Ren J Q, Wang R 2011 Acta Phys. Sin. 60 09940 (in Chinese) [严卫, 陆文, 施健康, 任建奇, 王蕊 2011 60 09940]
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[22]	Plonski M, Smith C 2001 Algorithm Theoretical Basis Document (ATBD) for the Conical-Scanning Microwave Imager/Sounder (CMIS) Environmental Data Records (EDRs) Vol. 17 (Lexington: AER) pp1–132

施引文献

[1]	Ulaby F T, Moore R K, Fung A K 1981 Microwave Remote Sensing: Active and Qassive (Vol. 1) (Massachusetts: Addison-Wesley Publishing Company) pp229–285
[2]	Martine S 2004 An Introduction to Ocean Remote Sensing (Cambridge: Cambridge University Press) pp201–227
[3]	Gaiser P W, Twarog E M, Karen L L 2004 IEEE Trans. Geosci. Remote Sens. 42 2347
[4]	Wang Z Z, Jiang J S, Liu J Y, Yin X B 2008 Eng. Sin. 6 76 (in Chinese) [王振占, 姜景山, 刘憬怡, 殷晓斌 2008 中国工程科学 6 76]
[5]	Zhang R, Zhu Z C, Zhang J, Zhu G X 2006 J. Astronaut. 27 578 (in Chinese) [张锐, 朱振才, 张静, 朱光沂 2006 基于磁强计的微小卫星姿态确定宇航学报 27 578]
[6]	Qian S, Li P K, Zhang S F, Cai H 2009 J. Astronaut. 30 585 (in Chinese) [钱山, 李鹏奎, 张士峰, 蔡洪 2009 宇航学报 30 585]
[7]	Abdelrahman M, Peak S Y 2011 IEEE Trans. Aero. Elec. Sys. 47 1401
[8]	Teshima Y, Iwasaki A 2008 IEEE Trans. Geosci. Remote Sens. 46 222
[9]	Khlopenkov K V, Trishchenko A P, Luo Y 2010 IEEE Trans. Geosci. Remote Sens. 48 2150
[10]	LuW, YanW, Shi J K, Ren J Q 2010 Remote Sens. Tech. Appl. 25 126 (in Chinese) [陆文, 严卫, 施健康, 任建奇 2010 遥感技术与应用 25 126]
[11]	Stokes G G 1852 Trans. Cambridge Phil. Soc. 9 399
[12]	Shi J K, Yan W, Gong H Y 2009 J. Microwave 25 79 (in Chinese) [施健康, 严卫, 龚洪运 2009 微波学报 25 79]
[13]	Zhang RW1998 Satellites Orbit and Attitude Dynamics and Control (Beijing: Beihang University Press) pp11–27 [章仁为 1998 卫星轨道姿态动力学与控制 (北京: 北京航空航天大学出版社) 第11-27页]
[14]	Corbella I, Gasiewski A J, Klein M, Piepmeier J R 2001 IEEE Trans. Geosci. Remote Sens. 39 193
[15]	Guo G J, Su L, Bi SW2005 Acta Phys. Sin. 54 2448 (in Chinese) [郭冠军, 苏林, 毕思文 2005 风成海面的极化辐射 54 2448]
[16]	Brown S T, Ruf C S, Lyzenga D R 2006 IEEE Trans. Geosci. Remote Sens. 44 611
[17]	Wang Z Z 2005 Ph. D. Dissertation (Beijing: Center for Space Science and Applied Research, Chinese Academy of Sciences) (in Chinese) [王振占 2005 博士学位论文 (北京: 中国科学院空间科学与应用研究中心)]
[18]	Xie T, He C, Perrie W, Kuang H L, Zou G H, Chen W 2010 Chin. Phys. B 19 024101
[19]	Purdy W E, Gaiser P W, Poe G A 2006 IEEE Trans. Geosci. Remote Sens. 44 496
[20]	Yan W, Lu W, Shi J K, Ren J Q, Wang R 2011 Acta Phys. Sin. 60 09940 (in Chinese) [严卫, 陆文, 施健康, 任建奇, 王蕊 2011 60 09940]
[21]	Meissner T, Wentz F J 2006 IEEE Trans. Geosci. Remote Sens. 44 506
[22]	Plonski M, Smith C 2001 Algorithm Theoretical Basis Document (ATBD) for the Conical-Scanning Microwave Imager/Sounder (CMIS) Environmental Data Records (EDRs) Vol. 17 (Lexington: AER) pp1–132

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