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An Adaptive Approach of Satellite Baseline Estimation in InSAR
School of Information Engineering, China University of Geosciences (Beijing), Beijing, China
Academic Affairs Office, Minzu University of China, Beijing, China
- 1 School of Information Engineering, China University of Geosciences (Beijing), Beijing, China
- 2 Academic Affairs Office, Minzu University of China, Beijing, China
International Journal of Geosciences·Volume 06 (2015)·Pages 1261–1266·Published 16 December 2015·DOI10.4236/ijg.2015.612100
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Abstract
Baseline is an important parameter of radar interferometry. Generally, it can be estimated by satellite orbital data or ground control points. In this paper, an adaptive method is proposed to estimate it with combination satellite orbital data, and the accuracy of baseline estimated can be improved without ground control points; actual data of ERS and ENVISAT ASAR have been used in algorithm development and the final obtained elevation shows that the precise orbit data is more accurate than original orbit data in estimating baseline.
KeywordsBaseline EstimationOptimal BaselineAdaptive MethodInSAR
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