Open AccessFast interferometric synthetic aperture radar deformation parameter estimation method based on time difference baseline set
Author(s) -
Xue Feiyang,
Lv Xiaolei,
Yuan Jili,
Yun Ye
Publication year - 2019
Publication title -
electronics letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.375
H-Index - 146
eISSN - 1350-911X
pISSN - 0013-5194
DOI - 10.1049/el.2019.1759
Subject(s) - baseline (sea) , synthetic aperture radar , interferometric synthetic aperture radar , interferometry , algorithm , deformation (meteorology) , series (stratigraphy) , computer science , radar , elevation (ballistics) , inverse synthetic aperture radar , radar imaging , mathematics , optics , artificial intelligence , geology , telecommunications , geometry , physics , paleontology , oceanography
Conventional time‐series interferometric synthetic aperture radar techniques solve elevation correction and linear deformation rate by non‐linear optimisation in 2D space, spatial baseline, and temporal baseline. This letter presents a new method called the time difference baseline set (TDBS). By utilising the discrete characteristic of temporal baseline, the conventional 2D optimisation can be transformed into two 1D optimisations to estimate elevation correction and linear deformation rate, respectively. The authors' TDBS‐based two‐steps method reduces the time complexity from O ( n 2 ) to O ( n ) without compromising on accuracy. The comparative experiments and analysis carried out on real data confirmed the effectiveness of the proposed method.