基于hp-自适应伪谱法的高超声速飞行器上升段闭环制导研究

Research of Ascent Closed-loop Guidance for Hypersonic Vehicles Based on Hp-adaptive Pseudo Spectrum Method

对于高超声速飞行器的上升段而言,希望其能够在短时间内飞行较远的距离,并且达到理想的速度和高度;最重要的就是如何优化其轨迹,规避上升过程中的各种干扰因素,自主完成整个飞行任务。文章以X-33飞行器模型作为研究对象,提出一种基于hp-自适应伪谱方法的轨迹优化方法和闭环制导策略,实时修正飞行路径,使其最终以理想速度到达目标位置;通过仿真验证了该方法的可靠性;结果表明,该方法具有较高的精度,收敛时间快,为闭环制导实时性研究提供了方向。

We need the great long distance can be reached within short times for the hypersonic vehicle ascent,and it can reach the ideal speed and altitude.The most important part is how to get the optimal trajectory and evade the most kinds of interference factors.It can finish the whole flight mission autonomously.The thesis takes X-33 aircraft model as the research object,and puts forward an ascent closed-loop guidance of hypersonic vehicle based on hp-adaptive pseudo spectrum method.It can correct the flight path in real time and lead the vehicle to the target location.Then t simulate the reliability of this method.The result indicated that this method based on hp-adaptive pseudo spectrum has better accuracy and faster convergence time.This method can provide the direction for real-time of closed-loop guidance.