A Method of Image Target Localization Applied to InSAR Baseline Measurement
应用于InSAR基线测量的图像目标定位方法

This paper deals with locating the synthetic targets precisely and dynamically.Based on experiments,authors analyze common methods such as filtering,edge detection,sub-pixel edge localization and central localization and compare them according to precision and time efficiency.Furthermore,the performance of moment operators is improved.More importantly,the paper presents a scheme applied to the baseline determination of dual- antenna InSAR.The new scheme consists of target matching,segmentation,noisy filtering,edge coarse localization,sub-pixel localization and central localization.The aim of 0.05 pixel' accuracy and 50ms' period is achieved.The experiments indicate that the algorithm proposed is anti-noise outstandingly and more applicable to the complicated circumstance of the outer space.