Instrument Design and Early In-Orbit Performance of HY-2B Scanning Microwave Radiometer

被引：14

作者：

Yu, Rui ^{[1
]}

Lu, Hailiang ^{[1
]}

Li, Shujing ^{[2
]}

Zhu, Dong ^{[3
]}

Zhou, Wu ^{[4
]}

Dang, Pengju ^{[1
]}

Wang, Congcong ^{[1
]}

Jin, Xu ^{[1
]}

Lv, Rongchuan ^{[1
]}

Li, Hao ^{[1
]}

机构：

[1] China Acad Space Technol Xian, Xian 710100, Peoples R China

[2] Air Force Engn Univ, Synthet Elect Informat Syst & Elect Countermeasur, Xian 710051, Peoples R China

[3] Huazhong Univ Sci & Technol, Sch Elect Informat & Commun, Wuhan 430074, Peoples R China

[4] Natl Satellite Ocean Applicat Serv, Beijing 100081, Peoples R China

来源：

IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING | 2022年 / 60卷

基金：

中国国家自然科学基金;

关键词：

Microwave radiometry; Satellite broadcasting; Calibration; Receivers; Ocean temperature; Sea surface; Microwave imaging; Early in-orbit performance; Haiyang-2B (HY-2B); instrument design; scanning microwave radiometer (SMR); SEA-SURFACE TEMPERATURE; CALIBRATION; RETRIEVAL; SATELLITE;

D O I：

10.1109/TGRS.2021.3095400

中图分类号：

P3 [地球物理学]; P59 [地球化学];

学科分类号：

0708 ; 070902 ;

摘要：

Currently, many microwave radiometers have been successfully used in earth-observation and ocean-monitoring systems. In China, the scanning microwave radiometers (SMR) onboard the Haiyang-2A/2B (HY-2A/2B) satellites are multichannel radiometers capable of obtaining oceanic and atmospheric parameters, such as sea surface temperature (SST), sea surface wind speed (WS), water vapor (WV), and cloud liquid water (LW). As a successor to HY-2A, the HY-2B satellite was launched successfully on October 25, 2018. Compared with the HY-2A's SMR, the HY-2B's SMR is an improved microwave radiometer. This article is concerned with the instrument design of the HY-2B's SMR and its improvements. The important improvements of the HY-2B's SMR in regard to the feedhorns and cold-sky reflector (CSR) are verified, and the early in-orbit performance of the HY-2B's SMR is evaluated. The results demonstrate that the HY-2B's SMR exhibits an important improvement on the HY-2A's SMR in terms of the quality of the brightness temperature (TB) products and calibration accuracy. The results also show that the HY-2B's SMR has a good performance in terms of the global TB images and the retrieved products with a good agreement with the expectations.

引用

页数：13

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