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安全着陆是无人机研究的关键内容。为了提高无人机着陆的安全性和可靠性,提出了基于分布特征点解算无人机姿态的视觉算法。根据成像原理,利用机载光学传感器获取的图像信息和机场的数个特征点信息,解算出无人机的姿态信息。无人机姿态参数可以为无人机综合导航和信息融合实现无人机自主着陆提供参考。
Safe landing is the key content of UAV research. In order to improve the safety and reliability of the UAV landing, a visual algorithm based on the distribution of characteristic points to solve UAV attitude is proposed. According to the imaging principle, the attitude information of the UAV is calculated by using the image information acquired by the onboard optical sensor and several characteristic points of the airport. UAV attitude parameters can provide a reference for autonomous UAS landing by integrated UAV navigation and information fusion.