Journal of Systems Engineering and Electronics ›› 2010, Vol. 32 ›› Issue (4): 699-702.

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Method of spaceborne InSAR shadow and layover phase reconstruction

WANG Qing-song1， SHI Xin-hua2， HUANG Hai-feng1， DONG Zhen1， LIANG Dian-nong1   

  1. （1． School of Electronic Science and Engineering, National Univ. of Defense Technology, 
    Changsha 410073, China；
     2. Inst. of Tracking and Telecommunications Technology, Beijing 100094, China）
  • Online:2010-04-23 Published:2010-01-03

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Abstract:

To settle the difficulty of geolocation in the interferometric synthetic aperture radar (InSAR), the phase characteristic of the spaceborne InSAR shadow region is analyzed, and the conclusion is that phase difference between the extremities of the shadow region in range is small. With the result, a solution of phase reconstruction in the shadow region is developed. A phase model of layover is established, and the phase character is analyzed. A method of phase reconstruction in the layover region is presented based on the phase character. Simulation result indicates the validity and practicability of the proposed method.

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