广西科技大学学报2026，Vol.37Issue(2)：70-81,12.DOI:10.16375/j.cnki.cn45-1395/t.2026.02.009
高斯牛顿滤波相位解缠算法
Gauss-Newton filtering phase unwrapping algorithm
摘要
Abstract
In order to effectively improve the accuracy and reliability of interferogram phase unwrapping,a phase unwrapping algorithm based on Gauss-Newton filtering was proposed.First,the unwrapped phase and phase gradient were estimated simultaneously as a state variable,and the Gauss-Newton filtering phase unwrapping procedure based on the extended state variable dimension was constructed.Second,the working path of the Gauss-Newton filtering phase unwrapping procedure was planned by a path tracking strategy based on heap sorting in order to improve the efficiency and accuracy of phase unwrapping.Finally,the efficacy of the proposed method was validated through the utilisation of simulated and measured data experiments,with a comparative analysis conducted against the commonly employed branch-cut,iterative least squares,quality-guided,and unscented Kalman filtering phase unwrapping algorithm,and the accuracy is improved by at least 7.67%compared with the unscented Kalman filtering phase unwrapping algorithm,which also performs well in terms of accuracy.关键词
干涉图/相位解缠(PU)/高斯牛顿滤波(GNF)/路径跟踪策略Key words
interferogram/phase unwrapping(PU)/Gauss-Newton filtering(GNF)/path tracking strategy分类
天文与地球科学引用本文复制引用
望倪涛,谢先明,王鑫汉,胡佳俊,贾金国..高斯牛顿滤波相位解缠算法[J].广西科技大学学报,2026,37(2):70-81,12.基金项目
国家自然科学基金项目(62161003) （62161003）
广西自然科学基金项目(2023GXNSFAA026024)资助 （2023GXNSFAA026024）
