【摘要】 <正> 前言 目前关于最优导引律的文献中,除文献讨论了将导引对象视为具有瞬时响应特性的质点,考虑了控制的法向约束而外,其他均未考虑控制的约束问题。为了大幅度地提高导引精度,在建立“导引对象——目标”的数学模型时,就必须考虑导引对象的动态响应。但是如果把实际动态响应全部都考虑到,就会使问题变得非常复杂,以致无法更多还原

【Abstract】 An optimal guidance law based on the maximum principle is discussed in this paper. It is assumed that the kinetic characteristics of "vehicle-target"are that of a first order lag loop which can be described as follows:the performance index is the minimum control energy consumptionthe terminal states belong to a intecept curved surface with control cutoff and the terminal acceleration of the vehicle equals zero:the control force satisfies the normal constraint:Based on these assumptions, an analytical form of the closed loop optimal intercept guidance law has been deduced.更多还原