蚁群算法在 InSAR 相位解缠中的应用

相位解缠是InSAR信号处理的关键过程,针对传统的枝切法存在枝切线整体长度过长和容易产生解缠"孤岛"现象等问题,基于蚁群算法提出一种改进的枝切法,通过对传统的枝切线进行优化,有效地减少枝切线长度。采用伊朗Bam地区的InSAR图像数据对算法进行实验计算与分析,表明本文算法所需设置的枝切线整体长度较短,能获得更好的相位解缠效果。

Research on application of ant colony optimization to InSAR phase unwrapping

The phase unwrapping is a key step in InSAR signal processing .The traditional method has the problem of the whole length of the branch tangent line and prone to unwrapping “island” phenomenon . This paper ,based on ant colony algorithm ,presents an improved branch‐cut method through the traditional branch tangent to optimize and effectively reduce the branch tangent length .Iran's Bam region is taken as the case to calculate and analyze the InSAR image data of this algorithm . The experiments show this algorithm needs a shorter branch tangent w hich can get better phase unw rapping effect .