无人机空中加油自主会合导引律研究

摘要

With the theory research of UAV autonomous guidance law for rendezvous in aerial refueling,the problem of homing guidance with impact final heading constraint is put forward.By redesigning the biased item in the 3D space and viewing the desired rendezvous point as the target and combing with pure tracking in the end of the guidance,the requirement for the terminal heading heading is achieved.Finllay,the guidance law given in the article is proved to be reasonable with a simulation example of air-tanker with constant speed and direction and with U motor,the UAV to select different initial position and heading.The simulation results show that the design of autonomous rendezvous guidance law is effective for UAV aerial refueling autonomous rendezvous, solves the existing class of autonomous rendezvous guidance law design complex, to be known in advance tankers trajectory and a large number of online programming calculation.%针对自主空中加油技术中的会和阶段的理论研究，提出一种带有终端偏航角约束的导引问题。通过对三维空间中重新设计偏置项，来同时约束俯仰与偏航角，将期望的会合点作为跟踪目标，并在制导末端结合纯追踪法，实现终端航向的控制。最后，以匀速直线运动和作U型机动的加油机为例，对无人机（UAV）选取不同的初始位置和航向来检验所提出的制导律实现会合的能力。仿真结果表明，所设计的自主会合制导律有效实现无人机空中加油自主会合，解决了现有一类自主会合制导律设计复杂、需预先已知加油机轨迹及大量在线规划计算的问题。