CAJ | 학술논문

设计了一种连续且有限时间稳定的终端角约束制导律,该制导律不但能够打击非机动目标而且能有效打击机动性的目标. 文中首先将超扭曲算法进行改进,设计了一种自适应超扭曲算法,该算法的参数是随着干扰的大小自动调节的,从而避免了常规的超扭曲算法由于参数选取不当而引起的对滑模抖振的抑制能力下降. 文中将自适应超扭曲算法首次与积分滑模相结合,设计了一种有限时间收敛的干扰补偿器,该干扰补偿器能够在有限时间内对干扰进行精确补偿,然后采用几何齐次理论针对干扰补偿后的系统设计了有限时间收敛控制器. 以上干扰观测器和控制器组成的复合控制律,能够保证系统的有限时间稳定性,此外该控制律不但是连续的,而且参数是自适应的,因而大大降低了滑模的抖振特性.文中将以上控制理论应用于终端角约束制导律的设计过程中,最后通过仿真验证了该制导律的有效性.
설계료일충련속차유한시간은정적종단각약속제도률,해제도률불단능구타격비궤동목표이차능유효타격궤동성적목표. 문중수선장초뉴곡산법진행개진,설계료일충자괄응초뉴곡산법,해산법적삼수시수착간우적대소자동조절적,종이피면료상규적초뉴곡산법유우삼수선취불당이인기적대활모두진적억제능력하강. 문중장자괄응초뉴곡산법수차여적분활모상결합,설계료일충유한시간수렴적간우보상기,해간우보상기능구재유한시간내대간우진행정학보상,연후채용궤하제차이론침대간우보상후적계통설계료유한시간수렴공제기. 이상간우관측기화공제기조성적복합공제률,능구보증계통적유한시간은정성,차외해공제률불단시련속적,이차삼수시자괄응적,인이대대강저료활모적두진특성.문중장이상공제이론응용우종단각약속제도률적설계과정중,최후통과방진험증료해제도률적유효성.
A continuous finite-time stabilization guidance law with terminal impact angle constrained is presented in this pa-per,which can be used to intercept the non-maneuvering and maneuvering target.Firstly,an adaptive super-twisted algorithm is de-signed based on the super-twisted algorithm,which can effectively alleviate the chattering,through using the adaptive parameters. A finite-time stabilization disturbance compensator is designed based on the adaptive super-twisted algorithm and the integrated sliding surface.Secondly,the geometric homogeneous theory is employed to design the finite-time stabilization controller for the compensated nominal system.The controller,composited by above disturbance observer and the geometric homogeneous theory controller,can en-sure the system's finite time convergence.In addition,the composite controller is continuous and the parameters are adaptive,which can effective suppress the chattering of the sliding mode.The above control theory is applied to design the guidance law with terminal impact angle constrained,and the effectiveness of the guidance law is verified through simulation.