THE SOIL MOISTURE ACTIVE/PASSIVE (SMAP) RADAR

被引:0
|
作者
Spencer, Michael [1 ]
Kim, Yunjin [1 ]
Chan, Samuel [1 ]
机构
[1] CALTECH, Jet Prop Lab, Pasadena, CA 91109 USA
关键词
Soil Moisture; L-Band;
D O I
暂无
中图分类号
TP7 [遥感技术];
学科分类号
081102 ; 0816 ; 081602 ; 083002 ; 1404 ;
摘要
The Soil Moisture Active/Passive (SMAP) mission is a NASA mission identified by the NRC "decadal survey" to measure both soil moisture and freeze/thaw, state from space. The mission will use both active radar and passive radiometer instruments at L-Band In order to achieve a wide swath at sufficiently high resolution for both active and passive channels, an instrument architecture that uses a large rotating reflector is employed. The active radar will further utilize SAR processing in order to obtain the sub-footprint resolution necessary for the geophysical retrievals. The SMAP radar has a unique geometry where the antenna footprint is continuously rotated about nadir in a conical fashion, as opposed to the more common side-looking SAR design. In support of the design of the SAMP radar a point target simulator has been constructed and used to validate the SAMP radar design parameters.
引用
收藏
页码:931 / 935
页数:5
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