Abstract. In order to achieve accurate locations of multiple targets on an airborne optoelectronic platform, we propose a multitarget location system based on the digital elevation model and a multitarget location model based on the target vector. Through the target detection algorithm, the pixel coordinates of each target in the field of view can be obtained and the visual axis vector of each target is constructed. By integrating the measurement data of each sensor in an unmanned aerial vehicle and the photoelectric platform, the geographical location information of each target can be calculated. In the condition of a flight height of 3000 m, the location error for the main target is 16.47 m, and the location error for the secondary target is about 27.36 m. The effect of the improved filtering model is analyzed. After filtering, the main target location error is reduced to 7 m, and the secondary target location error is reduced to 11 m. The proposed method has the advantages of high real-time performance, high location accuracy, and convenient engineering application.

中文翻译：

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适应复杂地貌环境的机载光电侦察系统多目标定位

摘要。为了在机载光电平台上实现多目标的精确定位，我们提出了基于数字高程模型的多目标定位系统和基于目标矢量的多目标定位模型。通过目标检测算法，可以获得视野内各个目标的像素坐标，构建各个目标的视轴向量。通过集成无人机和光电平台中各个传感器的测量数据，可以计算出各个目标的地理位置信息。在飞行高度3000 m条件下，主目标定位误差为16.47 m，次目标定位误差约为27.36 m。分析了改进滤波模型的效果。过滤后，主目标定位误差降低至7 m，次目标定位误差降低至11 m。该方法具有实时性高、定位精度高、工程应用方便等优点。