Journal of University of Chinese Academy of Sciences >
Antenna structural design based on phase center error analysis of airborne ATI-SAR
Received date: 2012-03-06
Revised date: 2012-04-19
Online published: 2012-04-19
Supported by
Supported by NSFC(60890070)
Along-track interferometric synthetic aperture radar (ATI-SAR) detects ground moving objects and measures their velocities. Phase center error is a major error source of ATI-SAR. Not only does the constant offset need external calibration, but also the rigidity of antennas should prohibit the drifting errors. We analyzed the drifting errors caused by antenna's mechanical deformation and proposed requirements for structural design of antenna to meet the velocity measuring requirements, providing theoretical foundation for airborne ATI-SAR antenna structure design.
WANG Xin , HONG Jun . Antenna structural design based on phase center error analysis of airborne ATI-SAR[J]. Journal of University of Chinese Academy of Sciences, 2013 , 30(2) : 228 -232 . DOI: 10.7523/j.issn.1002-1175.2013.02.013
[1] Yu X Z, Zhong J S, Hong W. Shallow sea topography imaging model by along-track interferometric SAR and its optimal radar parameters analysis[J]. Journal of Electronics & Information Technology, 2010,32(10): 2377-2382(in Chinese).于祥祯,种劲松,洪文. 顺轨干涉SAR浅海地形成像建模及其最优雷达观测参数分析[J]. 电子与信息学报,2010,32(10): 2377-2382.[HT]
[2] Li D J, Tang L B, Wu Y R, et al. Ground moving target indication based on along track airborne InSAR with two antennas[J]. Journal of Electronics & Information Technology, 2006,28(6): 961-964(in Chinese).李道京,汤立波,吴一戎,等. 顺轨双天线机载InSAR的地面运动目标检测研究[J]. 电子与信息学报,2006,28(6): 961-964.
[3] Hirsch O. Calibration of an airborne along-track interferometric SAR system for accurate measurement of velocities[C]//IEEE 2001 International Geoscience and Remote Sensing Symposium. 2001, 1: 558-560.
[4] 柬咸荣,何炳发,高铁.相控阵雷达天线[M].北京:国防工业出版社,2007.
[5] Robert J M. Phased array antenna handbook[M].2nd ed. Boston, MA:Artech Print on Demand, March 31, 2005.
[6] Chen J, Zhou Y Q. Ambiguity performance analysis of spaceborne SAR with thermal mechanism errors in phased array antenna[J]. Journal of Beijing University of Aeronautics and Astronautics. 2004, 30(9): 839-843 (in Chinese).陈杰,周荫清. 星载 SAR 相控阵天线热变形误差分析[J]. 北京航空航天大学学报,2004, 30(9): 839-843.
[7] Lightstone L. Antenna distortions in multiple phase center interferometric systems[C]//IEEE 1994 International Geoscience and Remote Sensing Symposium. 1994,4: 1980-1982.
[8] Carter D. Phase centers of microwave antennas[J]. IRE Transactions on Antennas and Propagation, 1956.
[9] Muehldorf E. The phase center of horn antennas[J]. IEEE Trans Antennas and Propagation,1970,18(6):753-760.
[10] Helay A, Sebak A,Shafai L. Phase center movement in linear phased array antennas[C]//IEEE International Geoscience and Remote Sensing Symposium. 1990.
/
| 〈 |
|
〉 |