A Fast Phase Unwrapping Method Based on Interface Propagation

doi:10.13474/j.cnki.11-2246.2018.0250

测绘通报 ›› 2018, Vol. 0 ›› Issue (8): 84-87.doi: 10.13474/j.cnki.11-2246.2018.0250

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A Fast Phase Unwrapping Method Based on Interface Propagation

GAO Jian¹, SHI Lei², XIA Yu², SHEN Peishan²

1. School of Geography and Biological Information, Nanjing University of Posts and Telecommunications, Nanjing 210046, China;
2. School of Telecommunication and Information Engineering, Nanjing University of Posts and Telecommunications, Nanjing 210046, China

Received:2017-10-25 Online:2018-08-25 Published:2018-08-30

Abstract

Abstract: Phase unwrapping is one of the important processing steps of interferometric measurement.With the progress of observation technology,the unwrapping process is also facing new situation,especially for large and massive data processing problems.In this paper,a parallel phase unwrapping method based on interface propagation is proposed.Firstly,the reliability of the data is defined by the residual point and the distribution of the data quality index,and then the absolute phase is calculated according to the reliability value.The realization of the whole process is based on the parallel processing mode of data block,and the operation between the data blocks and the block realizes the interface forward and reverse propagation process.The experimental results of real InSAR data verify the reliability and efficiency of the proposed method.

Key words: interface propagation, phase unwrapping, parallel acceleration

CLC Number:

P237

GAO Jian, SHI Lei, XIA Yu, SHEN Peishan. A Fast Phase Unwrapping Method Based on Interface Propagation[J]. 测绘通报, 2018, 0(8): 84-87.

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A Fast Phase Unwrapping Method Based on Interface Propagation

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