On the basis of the principle of SAR(synthetic aperture radar) system, significance of SAR antenna's phase center is analyzed and two parameters are summed up: LMS location of aperture-plane phase center and relative inserted phase shift. By using the GO(geometrical optics) principle and least square estimation, the measurement method for the two parameters is presented and verified by a two-aperture phased array antenna.
SUN Hui-Feng
,
DENG Yun-Kai
,
LEI Hong
,
SHI Li
. Analysis and measurement of SAR antenna's phase center[J]. Journal of University of Chinese Academy of Sciences, 2012
, (6)
: 793
-798
.
DOI: 10.7523/j.issn.2095-6134.2012.6.011
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