The influence of antenna pattern on Faraday rotation in remote sensing at L-band

被引：23
作者：
Le Vine, David M. [1 ]
Jacob, S. Daniel
Dinnat, Emmanuel P.
De Matthaeis, Paolo
Abraham, Saji
机构：
[1] NASA, Goddard Space Flight Ctr, Lab Hydrospher & Biospher Sci, Instrument Sci Branch, Greenbelt, MD 20771 USA
[2] NASA, Goddard Space Flight Ctr, Goddard Earth Sci & Technol Ctr, Greenbelt, MD 20771 USA
[3] NASA, Goddard Space Flight Ctr, RS Informat Syst Inc, Greenbelt, MD 20771 USA
来源：
IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING | 2007年 / 45卷 / 09期
关键词：
antenna patterns; Faraday rotation; microwave remote sensing; radiometer;
D O I：
10.1109/TGRS.2007.898237
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：
The influence of the pattern of the receive antenna on measured Faraday rotation is examined in the context of passive remote sensing of soil moisture and ocean salinity at L-band. Faraday rotation is an important consideration for radiometers on future missions in space, such as SMOS and Aquarius. Using the radiometer on Aquarius as an example, it is shown that, while I = Tv + Th is independent of Faraday rotation to first order, it has rotation dependence when realistic antenna patterns are included in the analysis. In addition, it is shown that using the third Stokes parameter to measure the rotation angle can yield a result that is biased by as much as 1 degrees by purely geometrical issues that are associated with the finite width of the main beam.
引用
收藏
页码：2737 / 2746
页数：10
相关论文
共 21 条
[1]   Evaluation of IRI-95 to correct errors caused by Faraday rotation in passive microwave remote sensing from space [J].
Abraham, S ;
LeVine, DM .
INTERNATIONAL REFERENCE IONOSPHERE - WORKSHOP 1999, 2001, 27 (01) :153-156
[2]   International geomagnetic reference field: The seventh generation [J].
Barton, CE .
JOURNAL OF GEOMAGNETISM AND GEOELECTRICITY, 1997, 49 (2-3) :123-148
[3]   International Reference Ionosphere 2000 [J].
Bilitza, D .
RADIO SCIENCE, 2001, 36 (02) :261-275
[4]   Polarimetric formulation of the visibility function equation including cross-polar antenna patterns [J].
Camps, A ;
Corbella, I ;
Torres, F ;
Vall-Ilossera, M ;
Duffo, N .
IEEE GEOSCIENCE AND REMOTE SENSING LETTERS, 2005, 2 (03) :292-295
[5]   Effects of the antenna aperture on remote sensing of sea surface salinity at L-band [J].
Dinnat, Emmanuel P. ;
Le Vine, David M. .
IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING, 2007, 45 (07) :2051-2060
[6]  
Fung A.K., 1994, Microwave Scattering and Emission Models and their Applications
[7]  
Kerr Y. H., 2000, MICROWAVE RADIOMETRY, P467
[8]   Soil moisture retrieval from space: The Soil Moisture and Ocean Salinity (SMOS) mission [J].
Kerr, YH ;
Waldteufel, P ;
Wigneron, JP ;
Martinuzzi, JM ;
Font, J ;
Berger, M .
IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING, 2001, 39 (08) :1729-1735
[9]  
Lagerloef GaryS.E., 1995, OCEANOGRAPHY, V8, P44, DOI [DOI 10.5670/OCEANOG.1995.17, DOI 10.5670/OCEANOG]
[10]  
Le Vine D. M, 2000, MICROWAVE RADIOMETRY, P89
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