Ultra-High-Performance C- and L-Band Radiometer System for Future Spaceborne Ocean Missions

被引：2
|
作者：
Skou, Niels [1 ]
Sobjaerg, Sten Schmidl [1 ]
Kristensen, Steen Savstrup [1 ]
Cappellin, Cecilia [2 ]
Pontoppidan, Knud [2 ]
de Lasson, Jakob Rosenkrantz [2 ]
Ivashina, Marianna V. [3 ]
Iupikov, Oleg A. [3 ]
机构：
[1] Tech Univ Denmark, DTU Space, DK-2800 Lyngby, Denmark
[2] TICRA, Copenhagen, Denmark
[3] Chalmers Univ Technol, S-41296 Gothenburg, Sweden
来源：
IEEE JOURNAL OF SELECTED TOPICS IN APPLIED EARTH OBSERVATIONS AND REMOTE SENSING | 2019年 / 12卷 / 06期
关键词：
Focal plane array (FPA); microwave; radiometer; receiver;
D O I：
10.1109/JSTARS.2019.2894846
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
A next-generation real-aperture spaceborne radiometer system for high-quality ocean measurements is discussed. Instead of illuminating the antenna reflector by a classical feed array of horn antennas in a one-feed-per-beam configuration, a multi-feed-per-beam configuration is chosen. Each antenna beam is thus created by adding the outputs from many small antenna elements in the feed array, thus providing an antenna beam of unsurpassed quality. This solves the classical polarization purity and land/sea contamination issues. The concept requires many microwave receivers and fast analog-to-digital converters as well as fast digital signal processing onboard the satellite. This is discussed, and resource budgets, especially concerning power, are provided.
引用
收藏
页码：1670 / 1678
页数：9
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