Design of Airborne Full Polarization Microwave Radiometer System and Extraction Method of Sea Surface Brightness Temperature

被引：0

作者：

Wang Z.-Z. ^{[1
]}

Ding J. ^{[1
,2
]}

Lu H. ^{[1
]}

Liu J.-Y. ^{[1
]}

Tong X.-L. ^{[1
]}

Li B. ^{[1
]}

Dong S. ^{[1
]}

Wang T. ^{[1
]}

Huo C.-X. ^{[1
]}

Ye Y.-H. ^{[1
]}

Zhang X.-K. ^{[1
,2
]}

Dong X.-L. ^{[1
,3
]}

机构：

[1] Key Laboratory of Microwave Remote Sensing, National Space Science Center, CAS, Beijing

[2] Schoool of Electronic, Electrical and Eommunication Engineering, University of Chinese Academy of Sciences, Beijing

[3] School of Astronomy and Space Science, University of Chinese Academy of Sciences, Beijing

来源：

Tien Tzu Hsueh Pao/Acta Electronica Sinica | 2023年 / 51卷 / 02期

基金：

中国国家自然科学基金;

关键词：

airborne microwave radiometer; antenna pattern; brightness temperature of the sea surface; calibration; full polarization;

D O I：

10.12263/DZXB.20220439

中图分类号：

学科分类号：

摘要：

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 micro⁃ wave 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 verti⁃ cal 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 sys⁃ tem 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 situa⁃ tion, which verifies the working performance of the instrument and the extraction method of sea surface brightness tempera⁃ ture, and provides a new technical means for the future airborne platform to obtain ocean surface parameters. © 2023 Chinese Institute of Electronics. All rights reserved.

引用

页码：275 / 285

页数：10

共 24 条

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