Volume XLII-2/W7
Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci., XLII-2/W7, 743-746, 2017
https://doi.org/10.5194/isprs-archives-XLII-2-W7-743-2017
© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 4.0 License.
Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci., XLII-2/W7, 743-746, 2017
https://doi.org/10.5194/isprs-archives-XLII-2-W7-743-2017
© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 4.0 License.

  13 Sep 2017

13 Sep 2017

MULTI-BASELINE INSAR ELEVATION INVERSION METHOD BASED ON THREE-DIMENSIONAL RECONSTRUCTION MODEL

F. Hua1, G. Peng1, L. Lu2, and Z. Wang1 F. Hua et al.
  • 1Aerial Photogrammetry and Remote Sensing Bureau, Xi’an, Shanxi 710199, China
  • 2Chinese Academy of Surveying and Mapping, Beijing 100830, China

Keywords: InSAR, Airborne, Multi-baseline, Three-dimensional reconstruction model

Abstract. The existing multi-baseline methods have some problems of low accuracy and intensive calculation. In order to solve the problems, a new multi-baseline InSAR elevation inversion method based on a rigorous geometric model instead of a simplified model is proposed in the letter. This method introduces the three-dimensional reconstruction model based on rigorous geometric model and the unknown full cycles of interferometric phase as a parameter to iteratively solve the 3-D coordinates of the target. With adopting the 3-D coordinate information of targets to connect different interferometric data, the new method obviously weakens the effects of system errors on solving the integer cycle and is more reliable than conventional multi-baseline InSAR methods. The experimental results show that the speed and accuracy of the new method are better than the existing methods.