CHARACTERISTIC ANALYSIS OF PHASE GLINT IN INSAR IMAGE PROCESSING | Zendy

Jingke Zhang | Zendy; Dahai Dai | Zendy; Zongfeng Qi | Zendy; Yonghu Zeng | Zendy; Liandong Wang | Zendy

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CHARACTERISTIC ANALYSIS OF PHASE GLINT IN INSAR IMAGE PROCESSING

Author(s) -

Jingke Zhang,

Dahai Dai,

Zongfeng Qi,

Yonghu Zeng,

Liandong Wang

Publication year - 2017

Publication title -

progress in electromagnetics research m

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.216

H-Index - 31

ISSN - 1937-8726

DOI - 10.2528/pierm17031601

Subject(s) - interferometric synthetic aperture radar , phase unwrapping , phase (matter) , image (mathematics) , computer science , computer vision , remote sensing , artificial intelligence , synthetic aperture radar , geology , physics , optics , interferometry , quantum mechanics

This paper investigates the phase glint problem involved in interferometric synthetic aperture radar (InSAR) image processing, which refers to the multiple scatterer interference of a single pixel, and studies the distribution of interferometric phase in the case of double scatterer interference. It is found that the value range of the observed interferometric phase is related to several factors including the complex scattering coefficient ratio and interferometric phase difference between the elementary scatterers, and no matter what values of interferometric phases of elementary scatterers are taken, the range of interferometric phase of phase glint is always 2π. This paper also briefly analyzes the impact of phase glint on classical InSAR image processing and man-made target height retrieval, and it is concluded that the phase glint will induce significant height estimating error. Simulation and real data results verify the conclusion.

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