控制与决策
控製與決策
공제여결책
CONTROL AND DECISION
2013年
6期
945-949
,共5页
池程芝%章卫国%朱江乐%刘小雄
池程芝%章衛國%硃江樂%劉小雄
지정지%장위국%주강악%류소웅
飞机%控制分配%不动点%梯度法%伪逆法%改进
飛機%控製分配%不動點%梯度法%偽逆法%改進
비궤%공제분배%불동점%제도법%위역법%개진
aircraft%control allocation%fixed-point%gradient method%pseudo-inverse%improvement
针对航空航天领域中存在的控制分配问题,提出一种基于最大方向导数(MDD)不动点迭代的控制分配策略.定义 MDD 为当前迭代点沿所有单位向量方向中最大导数对应的单位向量,沿 MDD 方向,取前一迭代点和当前迭代点的迭代增量作最小二乘拟合,下一迭代点在该方向上的估计迭代增量作为当前迭代点的更新迭代增量,并对改进算法的收敛性进行证明.通过不同方法的仿真对比验证,表明了所提出算法的有效性和快速性.
針對航空航天領域中存在的控製分配問題,提齣一種基于最大方嚮導數(MDD)不動點迭代的控製分配策略.定義 MDD 為噹前迭代點沿所有單位嚮量方嚮中最大導數對應的單位嚮量,沿 MDD 方嚮,取前一迭代點和噹前迭代點的迭代增量作最小二乘擬閤,下一迭代點在該方嚮上的估計迭代增量作為噹前迭代點的更新迭代增量,併對改進算法的收斂性進行證明.通過不同方法的倣真對比驗證,錶明瞭所提齣算法的有效性和快速性.
침대항공항천영역중존재적공제분배문제,제출일충기우최대방향도수(MDD)불동점질대적공제분배책략.정의 MDD 위당전질대점연소유단위향량방향중최대도수대응적단위향량,연 MDD 방향,취전일질대점화당전질대점적질대증량작최소이승의합,하일질대점재해방향상적고계질대증량작위당전질대점적경신질대증량,병대개진산법적수렴성진행증명.통과불동방법적방진대비험증,표명료소제출산법적유효성화쾌속성.
@@@@For the control allocation problem in the field of aeronautics and astronautics, a control allocation method based on max direction derivative(MDD) fixed-point(FXP) iteration is proposed. MDD is defined as the unit vector which has the max derivative among all the directions of the unit vector at current iteration point. Along the MDD direction, the increment of next iteration point is estimated by using least square fitting of the increments of the former and current iteration point, which is taken as a update for the increment of current iteration along the MDD direction. The convergence of the method is also proved. Finally, the comparison of different methods is carried out. The simulation results show the effectiveness and the rapidity of the proposed method.