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IMAGING COMPARISON BETWEEN THE REAL APERTURE AND SYNTHETIC APERTURE MICROWAVE RADIOMETERS: A CASE STUDY FOR GEO SOUNDER
Zhang, Cheng; Liu, Hao; Wu, Ji
作者部门微波遥感部
会议录名称IGARSS 2018 - 2018 IEEE INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM
2018
页码1017-1020
语种英语
ISSN号2153-6996
ISBN号978-1-5386-7150-4
摘要The dream of launching a microwave radiometer into geostationary orbit (GEO) for atmosphere sounding has lasted for over four decades. Several concepts have been proposed, but none of them has come into reality by now. All these concepts can be divided into two different ways, using real aperture microwave radiometer (RA-MWR) and using synthetic aperture microwave radiometer (SA-MWR). This paper is dedicated to make a preliminary comparison between the imaging performances of the RA-MWR and SA-MWR in GEO applications. In the comparison, a similar concept with the Geostationary Observatory for Microwave Atmospheric Sounding (GOMAS) with a Cassegrain antenna proposed by ESA is taken as the RA-MWR example, while the concept of Geostationary Interferometric Microwave Sounder (GIMS) with a circular antenna array pursued in China is taken as the example of SA-MWR. The numerical simulation results indicate that, with the benefits of using a predesigned Earch model, or even using a simple disc target, SA-MWR can greatly reduce the imaging error especially in the areas near to the Earth contour, and thus achieve a higher imaging accuracy than RA-MWR.
关键词microwave radiometer synthetic aperture real aperture imaging GEO
会议名称38th IEEE International Geoscience and Remote Sensing Symposium (IGARSS)
会议日期JUL 22-27, 2018
会议地点Valencia, SPAIN
收录类别CPCI
文献类型会议论文
条目标识符http://ir.nssc.ac.cn/handle/122/6703
专题微波遥感部
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GB/T 7714
Zhang, Cheng,Liu, Hao,Wu, Ji. IMAGING COMPARISON BETWEEN THE REAL APERTURE AND SYNTHETIC APERTURE MICROWAVE RADIOMETERS: A CASE STUDY FOR GEO SOUNDER[C],2018:1017-1020.
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