基于大气折射校正的HALE无人机SIMU/三星传感器组合导航方法

IF 1.9 4区工程技术 Q2 ENGINEERING, MARINE

Journal of Navigation Pub Date : 2022-02-08 DOI:10.1017/S037346332100093X

Ziqian Gao, Haiyong Wang, Weihong Wang, Yuan Xu

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引用次数: 1

摘要

摘要为了实现高空长航时无人机（HALE UAV）的全天自主飞行，提出了一种基于大气折射校正的捷联惯性测量单元（SIMU）与三星传感器深度集成的导航新方法。通过对大气折射模型的分析，引入了恒星方位坐标系，建立了姿态与位置的耦合关系。基于所有恒星方位平面在同一天顶方向相交的几何关系，研究了利用三窄视场恒星折射的唯一天体导航系统（CNS）方法，并建立了评估导航精度的损失函数。最后，在传统惯性导航系统/CNS组合导航方法的基础上，提出了一种新的带折射校正的SIMU/三星传感器深度组合导航方法。仿真结果表明，该方法能有效抑制HALE无人机在平流层24小时稳态巡航时的导航误差。

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SIMU/Triple star sensors integrated navigation method of HALE UAV based on atmospheric refraction correction

Abstract To achieve autonomous all-day flight by high-altitude long-endurance unmanned aerial vehicle (HALE UAV), a new navigation method with deep integration of strapdown inertial measurement unit (SIMU) and triple star sensors based on atmospheric refraction correction is proposed. By analysing the atmospheric refraction model, the stellar azimuth coordinate system is introduced and the coupling relationship between attitude and position is established. Based on the geometric relationship whereby all the stellar azimuth planes intersect on the common zenith direction, the sole celestial navigation system (CNS) method by stellar refraction with triple narrow fields of view (FOVs) is studied and a loss function is built to evaluate the navigation accuracy. Finally, the new SIMU/triple star sensors deep integrated navigation method with refraction correction upgraded from the traditional inertial navigation system (INS)/CNS integrated method can be established. The results of simulations show that the proposed method can effectively restrain navigation error of a HALE UAV in 24 h steady-state cruising in the stratosphere.

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来源期刊

Journal of Navigation 工程技术-工程：海洋

CiteScore

6.10

自引率

4.20%

发文量

审稿时长

4.6 months

期刊介绍： The Journal of Navigation contains original papers on the science of navigation by man and animals over land and sea and through air and space, including a selection of papers presented at meetings of the Institute and other organisations associated with navigation. Papers cover every aspect of navigation, from the highly technical to the descriptive and historical. Subjects include electronics, astronomy, mathematics, cartography, command and control, psychology and zoology, operational research, risk analysis, theoretical physics, operation in hostile environments, instrumentation, ergonomics, financial planning and law. The journal also publishes selected papers and reports from the Institute’s special interest groups. Contributions come from all parts of the world.