无人机多点测距目标定位算法及其误差特性研究

摘要

Because of its many characteristics ,unmanned aircraft become the research hotspot all over the world.On the one hand the UAV has the advantages of small volume ,flexible,strong concealment,so it can investigate in enemy occupied areas for long time over low altitude;on the other hand ,the UAV can carry a variety of sensors ,can give the accurate location and movement information of objectives ,to pro-vide decision basis for the battlefield commander .The position accuracy of the traditional single-point po-sitioning method is not very high ,therefore this paper proposes the multi-point ranging target localization algorithm of UAV which based on the coordinate transformation .The localization method is shown to be correct by applying simulation .Then the Monte Carlo method is used to study on the effects that the vari-ous error factors make on target location accuracy .%无人驾驶飞机因为其诸多特点成为世界各国竞相研究的热点。一方面无人机体积小、机动灵活、隐蔽性强，可以在敌占区上空进行长时间低空侦察；另一方面无人机可以携带多种传感器，能够精确地给出侦察目标的位置和运动信息，给战场指挥员提供决策依据。针对无人机传统单点定位方法误差大、定位精度不高的问题，提出了基于坐标转换的无人机多点测距目标定位算法；并经过仿真验证了定位方法的正确性；在此基础上，利用蒙特卡罗法研究了各项误差因素对目标定位精度的影响。