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In this paper, we present a novel algorithm to reconstruct DEM from its wrapped phases with redundancy for multichannel InSAR. It consists of two main steps after modelling the problem as a system of congruence equations. First, based on the recently proposed theory of common remainder, some wrapped phases with large errors are deleted from the given phases with redundancy. Then, the unknown ambiguity height is determined by the robust redundant residue number system (RRNS) method. Simulation results show that the proposed algorithm has more advantages than the existing Chinese remainder theorem method.

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Multichannel InSAR DEM Reconstruction from Wrapped Phases with Redundancy

  • 会议论文

  • 发表日期：

    2025年

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  • Xiaoping Li,
  • Chen Bai,
  • Qunying Liao

摘要

In this paper, we present a novel algorithm to reconstruct DEM from its wrapped phases with redundancy for multichannel InSAR. It consists of two main steps after modelling the problem as a system of congruence equations. First, based on the recently proposed theory of common remainder, some wrapped phases with large errors are deleted from the given phases with redundancy. Then, the unknown ambiguity height is determined by the robust redundant residue number system (RRNS) method. Simulation results show that the proposed algorithm has more advantages than the existing Chinese remainder theorem method.