摘要
光学数据事后处理利用光学测角数据进行交会解算,由于存在光轴不稳定的现象,影响试验结果的准确性。在光学设备数据处理过程中,利用改进的Canny算子进行十字丝边缘检测,运用自适应的迭代阈值分割技术进行直线提取,采用加权整体最小二乘法获取十字丝中心坐标,利用计算得到的中心点位置进行设备光十字丝修正。结果表明,与其他高精度弹道对比,使用算法修正后的光学弹道相对于简单进行十字丝修正的光学弹道,无论是在反算测元测角、位置还是速度,总体精度要更高,因此采用基于改进Canny算子的边缘提取算法可以提高光学数据解算的精度。
Optical data post-processing uses optical angular data for intersection solution.However,the accuracy of the test results is affected by optical axis instability.In the process of data processing of optical equipment,the improved Canny operator is used to detect the edge of the cross wire,and the adaptive iterative threshold segmentation technique is used to extract the straight line.Finally,the weighted global least square method is used to obtain the center coordinates of the cross wire,and the position of the calculated center point is used to correct the cross wire.The results show that as compared with other high-precision trajectories,the optical trajectory corrected by this algorithm has higher overall accuracy than the one with simple cross wire correction.Therefore,the accuracy of optical data solution can be improved by using the improved Canny operator based on the edge extraction algorithm.
作者
高燕
侯艳杰
夏霏
GAO Yan;HOU Yanjie;XIA Fei(Taiyuan Satellite Launch Center, Taiyuan 030027, China)
出处
《无线电工程》
2019年第8期689-694,共6页
Radio Engineering
