一种新的无人机偏航航迹计算方法  

Novel computation method for off-course track of UAV

作　　者：乔宁[1] 唐文辉[1] 贾新成 

机构地区：[1]空军预警学院,武汉430019 [2]中兵通信科技有限公司,河南新乡453000

出　　处：《空军预警学院学报》2014年第6期418-421,共4页Journal of Air Force Early Warning Academy

摘　　要：针对某型无人机模拟操作软件航迹计算精度存在的不足,提出了一种基于椭圆正反解公式的新的航迹计算方法.根据大地坐标系与大地基准相关原理,利用微元分析法计算无人机偏航航迹,通过缩小时间间隔,计算出等高飞行的无人机在小偏航角情形下的航迹经纬度.仿真验证结果表明,该方法能准确地计算小偏航角状态下无人机的飞行航迹,并能正确地对无人机飞越极点和赤道等特殊情况进行航迹修正,可用于其他飞行器的偏航航迹计算.To solve the accuracy deficiency of simulation operational software tor the track computauon or a certain type of UAV, this paper proposes a novel track computation approach based on the positive and negative solution formula of ellipse. According to geodetic coordinate system and the geodetic datum related principles, the off-course track of UAV is calculated by using the micro-element analytic method, and the longitude and latitude of flying UAV in the state of a small off-course angle and the constant altitude are calculated by reducing the time interval. Test results indicate that the track of UAV trader the circumstance of a small off-course angle can be calculated accurately by using this algorithm, and the track be corrected for some special cases when the UAV flying over the maximum point and/or equator, which can be also available for the off-course track computation of other air vehicles.

关 键 词：航迹模拟 无人机偏航 子午线弧长反解 

分 类 号：V249.1[航空宇航科学与技术—飞行器设计] TP311.5[自动化与计算机技术—计算机软件与理论]