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基于偏振光的无人机航姿LM优化解算方法
LM Optimization Calculate Method of UAV Attitude Based on Polarized Light
【摘要】 针对基于惯导和GPS/磁力计的导航系统易受到电磁干扰及诱导的问题,提出了一种基于偏振光和微惯导组合导航的无人机姿态求解算法。利用大气偏振矢量获取航向信息,搭配惯导元件实现列文伯格-马夸尔特(Levenberg-Marquardt, LM)优化的三维姿态角解算方法。实验结果表明:所提算法能有效降低噪声干扰,保持良好的静态稳定性;同时,相较于梯度法和牛顿法等常规算法,该方法具有更好的动态解算精度。
【Abstract】 Aiming at the problem that the navigation system based on inertial navigation and GPS/magnetometer is susceptible to electromagnetic interference and induction, a UAV attitude solving algorithm based on the combined navigation of polarized light and micro-inertial navigation is proposed. The heading information is obtained by using the atmospheric polarization vector, and the three-dimensional attitude angle solution method optimized by Levenberg-Marquardt(LM) is implemented with the inertial navigation element. The experimental results show that the proposed algorithm can effectively reduce noise interference and maintain good static stability; at the same time, compared with conventional algorithms such as gradient method and Newton method, it has better dynamic solution accuracy.
【Key words】 polarized-light; UAV; LM; attitude optimization calculate method;
- 【文献出处】 机械工程与自动化 ,Mechanical Engineering & Automation , 编辑部邮箱 ,2022年03期
- 【分类号】V279;V249
- 【下载频次】81