Error Analysis for Airborne Differential SAR Interferometry

Zhong Xue-lian; Xiang Mao-sheng; Yue Huan-yin; Guo Hua-dong

doi:10.3724/SP.J.1146.2009.00377

Volume 32 Issue 4

Dec. 2010

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Article Navigation > Journal of Electronics & Information Technology > 2010 > 32(4): 941-947

Zhong Xue-lian, Xiang Mao-sheng, Yue Huan-yin, Guo Hua-dong. Error Analysis for Airborne Differential SAR Interferometry[J]. Journal of Electronics & Information Technology, 2010, 32(4): 941-947. doi: 10.3724/SP.J.1146.2009.00377

Citation:

Zhong Xue-lian, Xiang Mao-sheng, Yue Huan-yin, Guo Hua-dong. Error Analysis for Airborne Differential SAR Interferometry[J]. Journal of Electronics & Information Technology, 2010, 32(4): 941-947. doi: 10.3724/SP.J.1146.2009.00377

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Error Analysis for Airborne Differential SAR Interferometry

doi: 10.3724/SP.J.1146.2009.00377

Received Date: 2009-03-23
Rev Recd Date: 2009-10-09
Publish Date: 2010-04-19

Abstract

Abstract

This paper mainly analyzes the important factors that influence the accuracy of airborne differential SAR interferometry. The error induced by the processing procedure of differential SAR interferometry is first considered, and it is point out that external DEM is indispensable to achieve high accuracy in detecting and monitoring deformations of the earths surface. Then several factors, i.e. system parameters, coherence and atmosphere, are discussed in detail. Among these factors, baseline length and orientation play a much more crucial role, and that means high quality of motion compensations are necessary. By connecting the coherence with the accuracy of airborne SAR differential interferometry, the flight path for repeat-pass interferomtery have to be precisely controlled to meet the baseline requirement. Similar to spaceborne SAR, Airborne SAR also suffers atmosphere effect. After discussing all these factors, the mathematical expressions of the accuracy are presented for airborne differential SAR interferometry.

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References(1)

References

Cumming I G and Wong F H. Digital Processing of SyntheticAperture, Radar Data: Algorithms and Implementation.America, Artech House Inc, 2005: 322-331.[2]Zhang Yun-hua and Zhai Wen-shuai. A new method forDoppler cenrtoid estimation for spaceborne SAR based onchirp scaling algorithm. Geoscience and Remote SensingSymposium, 2007, IGARSS2007, Barcelona Spain, July23-28, 2007: 543-546.[3]Dukhopelnikova I V. New difference Doppler centroidestimation method with high space resolution. Microwaves.[J].Radar and Remote Sensing Symposium, MRRS2008, KievUkraine, September 22-2.2008,:-[4]魏钟铨. 合成孔径雷达. 北京：科学出版社, 2001: 132-152.Wei Zhong-quan. Synthetic Aperture Radar Satellite. Beijing:Publishing House of Science, 2001: 132-152.[5]Raney R K. Doppler properties of radars in circular orbits[J].International Journal of Remote Sensing.1986, 7(9):1153-1162[6]Fiedler H and Boerner E. Total zero Doppler steeringAnew method for minimizing the Doppler centroid[J].Geoscienceand Sensing Letters.2005, 2(2):141-145[7]Boerner E and Fiedler H. A new method for total zeroDoppler steering. Geoscience and Remote SensingSymposium.[J].IGARSS2004, Anchorage Alaska, September20-2.2004,:-[8]Fiedler H.[J].Fritz T, and Kahle R. Verification of the total zeroDoppler steering. Radar2008 International Conference,Rome Italy, September 2-.2008,:-[9]郗晓宁, 王威. 近地航天器轨道基础. 长沙: 国防科技大学出版社, 2003, 4, 第7章, 第8章.Xi Xiao-ning and Wang Wei. Fundamentals of Near-earthSpacecraft Orbit. Changsha: Publishing House of NationalUniversity of Defence Technology, 2003, 4, Chapter7,Chapter8.[10]孟云鹤, 尹秋岩, 戴金海. SAR卫星多普勒频移偏航导引补偿效果分析. 中国空间科学技术, 2004, 24(1): 45-48.Meng Yun-he, Yin Qiu-yan, and Dai Jin-hai. Dopplerfrequency shift compensation analysis of SAR satellite yawsteering. Chinese Space Science and Technology, 2004, 24(1):45-48.

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