準(zhǔn)平衡滑翔軌跡在線規(guī)劃與跟蹤制導(dǎo)方法研究
發(fā)布時(shí)間:2018-05-05 07:48
本文選題:準(zhǔn)平衡滑翔 + 在線軌跡規(guī)劃; 參考:《航天控制》2016年05期
【摘要】:針對飛行器在線軌跡規(guī)劃問題提出一種基于準(zhǔn)平衡滑翔條件的軌跡在線規(guī)劃方法及利用PID控制器實(shí)現(xiàn)的全狀態(tài)跟蹤制導(dǎo)方法。利用準(zhǔn)平衡滑翔條件推導(dǎo)了高度、速度及航程等關(guān)鍵參數(shù)之間的解析關(guān)系,基于此條件結(jié)合飛行器當(dāng)前狀態(tài)與終端約束實(shí)現(xiàn)了物理可實(shí)現(xiàn)的滑翔軌跡快速規(guī)劃;根據(jù)需要的速度和高度反饋量設(shè)計(jì)了PID控制器,實(shí)現(xiàn)縱向軌跡跟蹤,通過飛行器航向誤差走廊保證了飛行航向。仿真算例驗(yàn)證了該方法能實(shí)現(xiàn)軌跡在線規(guī)劃,并對外部偏差具有較強(qiáng)的魯棒性。
[Abstract]:An online trajectory planning method based on quasi-equilibrium glide condition and a full-state tracking guidance method based on PID controller are proposed for the on-line trajectory planning of aircraft. The analytical relations among the key parameters such as altitude, speed and range are derived by using quasi-equilibrium gliding condition. Based on this condition, the physical and feasible rapid planning of gliding trajectory is realized by combining the current state and terminal constraints of the aircraft. The PID controller is designed according to the required speed and altitude feedback to realize longitudinal trajectory tracking. The flight course is ensured by the flight path error corridor. The simulation results show that the proposed method is robust to the external deviations.
【作者單位】: 國防科學(xué)技術(shù)大學(xué)航天科學(xué)與工程學(xué)院;空間物理重點(diǎn)實(shí)驗(yàn)室;
【分類號】:V448
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本文編號:1846823
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