InSAR DEM error modeling and calibration

Yong-jun Zhang; Hai-feng Huang; Yong-sheng Zhang; Dian-nong Liang

doi:10.1117/12.913414

1 October 2011 InSAR DEM error modeling and calibration

Yong-jun Zhang, Hai-feng Huang, Yong-sheng Zhang, Dian-nong Liang

Proceedings Volume 8285, International Conference on Graphic and Image Processing (ICGIP 2011); 82855J (2011) https://doi.org/10.1117/12.913414
Event: 2011 International Conference on Graphic and Image Processing, 2011, Cairo, Egypt

Abstract

This paper provides a error modeling and calibration method to the geolocation error problem arising in the generation of digital elevation model (DEM) via interferometric synthetic aperture radar (InSAR) technique. DEM error is divided into two parts, systematic error and random error, they are modeled respectively. The baseline error is of crucial importance in the systematic error, it causes a slowly changed height error in the azimuth and a small tilt in the ground range of the DEM, a 2-D polynomial function is used to fit the systematic height error. The corrected DEM is obtained by removing the systematic error from the raw DEM. Computer simulation results prove the availability of the method.

Citation Download Citation

Yong-jun Zhang, Hai-feng Huang, Yong-sheng Zhang, and Dian-nong Liang "InSAR DEM error modeling and calibration", Proc. SPIE 8285, International Conference on Graphic and Image Processing (ICGIP 2011), 82855J (1 October 2011); https://doi.org/10.1117/12.913414

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KEYWORDS

Interferometric synthetic aperture radar

Calibration

Error analysis

Antennas

Interferometry

Radar

Phase interferometry

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