机载全极化微波辐射计系统设计及海面亮温的提取方法
Design of Airborne Full Polarization Microwave Radiometer System and Extraction Method of Sea Surface Brightness Temperature
- 电子学报 2023年51卷第2期 页码：275-285
- 作者机构：
1.中国科学院国家空间科学中心中国科学院微波遥感技术重点实验室，北京 100190
2.中国科学院大学电子电气与通信工程学院，北京 100149
3.中国科学院大学天文与空间科学学院，北京 100149
- 作者简介：
[ "王振占 男，1969年出生，河北秦皇岛人.研究员，博士生导师，中国科学院“百人计划”引进人才.曾承担风云三号微波湿度计定标和数据处理算法研究，嫦娥二号微波探测仪月壤辐射传输理论和应用方法研究，海洋二号微波辐射计定标、数据处理及应用研究，全极化微波辐射计定标、数字相关器及应用技术研究等科研任务.现主要从事微波遥感新技术及应用技术等方面的研究工作，重点包括全极化微波辐射测量技术研究、海洋大气参数的反演应用研究、微波遥感器的定标/检验技术研究以及太赫兹大气探测机理研究等.E-mail: wangzhenzhan@mirslab.cn" ]
[ "丁甲（通讯作者） 男，1996年出生，山东枣庄人.2019年本科毕业于山东科技大学通信工程专业并获省优秀毕业生，同年保研至中国科学院大学，现在国家空间科学中心中国科学院微波遥感技术重点实验室攻读博士学位.主要从事全极化辐射计的天线方向图校正、全极化辐射计的数字孪生系统仿真、全极化定标方法的探究等方面的研究工作.中国电子学会会员编号： E190021177A.E-mail: 1075767279@qq.com; dingjia19@mails.ucas.ac" ]
- 基金信息：国家自然科学基金(41771405)
DOI：10.12263/DZXB.20220439
中图分类号： TP732.1;TP721.1收稿：2022-04-21，
修回：2022-09-02，
纸质出版：2023-02-25
- 稿件说明：
移动端阅览
王振占,丁甲,陆浩等.机载全极化微波辐射计系统设计及海面亮温的提取方法[J].电子学报,2023,51(02):275-285.
WANG Zhen-zhan,DING Jia,LU Hao,et al.Design of Airborne Full Polarization Microwave Radiometer System and Extraction Method of Sea Surface Brightness Temperature[J].ACTA ELECTRONICA SINICA,2023,51(02):275-285.
王振占,丁甲,陆浩等.机载全极化微波辐射计系统设计及海面亮温的提取方法[J].电子学报,2023,51(02):275-285. DOI： 10.12263/DZXB.20220439.
WANG Zhen-zhan,DING Jia,LU Hao,et al.Design of Airborne Full Polarization Microwave Radiometer System and Extraction Method of Sea Surface Brightness Temperature[J].ACTA ELECTRONICA SINICA,2023,51(02):275-285. DOI： 10.12263/DZXB.20220439.
摘要
机载全极化微波辐射计（Airborne full Polarization Microwave Radiometer，APMR）是国家重大科技基础设施航空遥感系统的主要载荷之一，用于获取来自地球表面和大气的微波辐射电场的极化信息，从而反演地球表面和大气的物理参数.APMR是一个5频点的被动微波遥感器，中心频点分别为10.7 GHz，18.7 GHz，23.8 GHz，37.0 GHz和90 GHz.其中，23.8 GHz和90 GHz采用水平和垂直极化接收方式；10.7 GHz，18.7 GHz和37.0 GHz采用全极化接收方式，同时接收观测场景辐射的4个Stokes参数亮温.该文在介绍我国第一台机载全极化微波辐射计APMR系统主要技术特点和基本性能指标的基础上，提出了由辐射计输出参数进行全极化定标、再进行海面亮温提取的二级数据处理方法，从而得到海面亮温的4个Stokes参数信息，其可用于海面风向、风速等参数的反演.APMR于2020年6月在东营进行了海上的搭载飞行试验，从实验结果中提取到的海面亮温与预期情况一致，这使仪器的工作性能以及海面亮温的提取方法得到验证，为未来机载平台获得海洋表面参数提供了新的技术手段.
Abstract
APMR (Airborne full Polarization Microwave Radiometer) is one of the main loads of the national major scientific and technological infrastructure aviation remote sensing system
which is used to obtain the polarization microwave radiation electric field information from the earth's surface and atmosphere
so as to retrieve the physical parameters of the earth's surface and atmosphere. APMR is a passive microwave remote sensor with 5 frequency points
and the central frequency points are 10.7 GHz
18.7 GHz
23.8 GHz
37.0 GHz and 90 GHz respectively. Among them
horizontal and vertical polarization reception is adopted at 23.8 GHz and 90 GHz; and full polarization reception is adopted at 10.7 GHz
18.7 GHz and 37.0 GHz
and four Stokes parameter brightness temperatures of observed scene radiation are received at the same time. Based on the introduction of the main technical characteristics and basic performance indexes of the APMR system of China's first airborne full polarization microwave radiometer
this paper puts forward a two-step data processing method which consists of full polarization calibrationand sea surface brightness temperature extraction
so as to obtain the four Stokes parameter information of sea surface brightness temperature
which can be used for the inversion of sea surface wind direction
wind speed and other parameters. Sea surface test of APMR have been carried out in Dongying in June 2020. The sea surface brightness temperature extracted from the experimental results is consistent with the expected situation
which verifies the working performance of the instrument and the extraction method of sea surface brightness temperature
and provides a new technical means for the future airborne platform to obtain ocean surface parameters.
关键词
Keywords
references
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