高超聲速滑翔飛行器變軌段自適應跟蹤制導方法
發(fā)布時間:2018-02-24 10:40
本文關鍵詞: 高超聲速滑翔飛行器 變軌段 權值矩陣修正 自適應跟蹤制導 出處:《國防科技大學學報》2016年05期 論文類型:期刊論文
【摘要】:針對高超聲速滑翔飛行器變軌段大偏差條件下的標準軌跡跟蹤問題,提出一種基于權值矩陣自適應修正的變軌段跟蹤制導方法。分析了變軌段主要控制方式和標準軌跡特性;將簡化的縱向運動方程在標準軌跡附近線性化;采用將誤差項引進線性二次型性能指標加權矩陣的方式,設計了改進的權值自適應修正跟蹤制導方法。CAV-H飛行器仿真分析表明,該方法能夠實現(xiàn)高超聲速滑翔飛行器變軌段高精度自適應跟蹤制導,對初始及過程偏差具有良好的魯棒性。
[Abstract]:Aiming at the standard trajectory tracking problem of hypersonic glider under the condition of large deviation, a new tracking guidance method based on weight matrix adaptive correction is proposed. The main control methods and standard trajectory characteristics are analyzed. The simplified longitudinal motion equation is linearized near the standard trajectory, the error term is introduced into the weighted matrix of linear quadratic performance index, and an improved weight adaptive modified tracking guidance method is designed. The simulation analysis of CAV-H vehicle shows that, This method can realize the high-precision adaptive tracking guidance of hypersonic glider in the orbit changing section, and has good robustness to the initial and process deviations.
【作者單位】: 國防科技大學航天科學與工程學院;中國航天科技集團公司;
【基金】:國防科學技術大學科研計劃資助項目(ZDYYJCYJ20140101)
【分類號】:V448.2
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本文編號:1529933
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