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提出了一种基于强度与相关系数综合评定指数的人工角反射器(CR)点目标识别方法。应用该方法在获取的5幅研究区域SAR影像上分别查找CR点位置,并将不同影像上相邻CR点间的距离进行比较以验证结果的准确性。利用这些CR点对高速公路进行形变监测,成功获得了其在2008~2009年间的形变量,得到了与水准实测数据较为吻合的形变结果。
A method of point target recognition based on the index of comprehensive evaluation of strength and correlation coefficient was proposed. This method is used to find the location of CR points in the acquired SAR images of the five study areas and compare the distances between adjacent CR points in different images to verify the accuracy of the results. Using these CR points to monitor the deformation of the expressway, the deformation of the expressway was successfully obtained from 2008 to 2009, and the deformation results that are in good agreement with the measured data were obtained.