吉林大学学报(工学版) ›› 2013, Vol. 43 ›› Issue (增刊1): 92-95.

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Principle and application of inSAR two tracks differential method

QIAN Fang-ming1,2, LIU Wei1,2, HUANG Yan1,2   

  1. 1. Third Room, Xi'an Research Institute of Surveying and Mapping, Xi'an 710054, China;
    2. State Key Laboratory of Geographical Information Engineering, Xi'an 710054, China
  • Received:2012-05-15 Published:2013-06-01

Abstract:

A deformation detection method of interferometric synthetic aperture radar system which is called two tracks differential method was proposed.Unwrapped phase or phase gradient information to confirm deformation area were used in the proposed method.Detection Principle was described and detection flow was designed.Experiment results indicate that two track differential methods could detect deformation area.Comparative analysis shows that it has low sensitivity when unwrapped phase information is used to detect position and size of deformation area;and it has high sensitivity when phase gradient information is used to detect the position of deformation area only.

Key words: inSAR, difference, deformation detection, phase unwrapping, phase gradient

CLC Number: 

  • P231

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