DESIGN OF PHASED ARRAY MICROWAVE SCATTEROMETER WITH DIGITAL BEAM FORMING TECHNIQUE IN ACTIVE AND PASSIVE COMBINING OBSERVATION SYSTEM FOR SEA SURFACE SALINITY

	DESIGN OF PHASED ARRAY MICROWAVE SCATTEROMETER WITH DIGITAL BEAM FORMING TECHNIQUE IN ACTIVE AND PASSIVE COMBINING OBSERVATION SYSTEM FOR SEA SURFACE SALINITY
	Zhang, Xiangkun; Liu, Hao
	2013
会议名称	IEEE International Geoscience and Remote Sensing Symposium (IGARSS)
会议日期	JUL 21-26, 2013
会议地点	Melbourne, AUSTRALIA
关键词	Microwave Scatterometer Phased Array Sea Surface Roughness
页码	1563-1566
通讯作者	Zhang, XK (reprint author), Chinese Acad Sci, Ctr Space Sci & Appl Res, CAS Key Lab Microwave Remote Sensing, POB 8710, Beijing, Peoples R China.
中文摘要	Active and passive combining observation microwave instrument combines L band one dimension push-broom synthetic aperture radiometer and L band array mode microwave scatterometer to make accurate measurement for sea surface salinity. In this system, microwave scatterometer provides the information about the sea surface roughness, one of the main sources of error for salinity measurement. Phased array mode is adopted in scatterometer and the array elements are arranged between two elements with the largest baseline of radiometer. The number of array elements is set to 7 and digital beam forming technique is used to get scanning in cross azimuth direction. Then same footprints with radiometer can be obtained. Narrow band chirp signal is used to get range resolution. In this way, accurate backscattering information corresponds to observing area of radiometer can be achieved and then sea surface roughness can be derived. Finally, the error coming from surface roughness can be corrected.
英文摘要	Active and passive combining observation microwave instrument combines L band one dimension push-broom synthetic aperture radiometer and L band array mode microwave scatterometer to make accurate measurement for sea surface salinity. In this system, microwave scatterometer provides the information about the sea surface roughness, one of the main sources of error for salinity measurement. Phased array mode is adopted in scatterometer and the array elements are arranged between two elements with the largest baseline of radiometer. The number of array elements is set to 7 and digital beam forming technique is used to get scanning in cross azimuth direction. Then same footprints with radiometer can be obtained. Narrow band chirp signal is used to get range resolution. In this way, accurate backscattering information corresponds to observing area of radiometer can be achieved and then sea surface roughness can be derived. Finally, the error coming from surface roughness can be corrected.
收录类别	EI ; CPCI
会议主办者	IEEE, Inst Elect & Elect Engineers, Geoscience & Remote Sensing Soc
会议录	2013 IEEE INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM (IGARSS)
会议录出版者	IEEE
会议录出版地	,NJ, USA
学科主题	微波遥感
语种	英语
ISBN号	978-1-4799-1114-1
内容类型	会议论文
源URL	[http://ir.cssar.ac.cn/handle/122/1804]
专题	国家空间科学中心_微波遥感部
推荐引用方式 GB/T 7714	Zhang, Xiangkun,Liu, Hao. DESIGN OF PHASED ARRAY MICROWAVE SCATTEROMETER WITH DIGITAL BEAM FORMING TECHNIQUE IN ACTIVE AND PASSIVE COMBINING OBSERVATION SYSTEM FOR SEA SURFACE SALINITY[C]. 见:IEEE International Geoscience and Remote Sensing Symposium (IGARSS). Melbourne, AUSTRALIA. JUL 21-26, 2013.