论文部分内容阅读
现代末制导导弹要求飞行控制系统以最低成本在规定的飞行空域内完成拦截任务。本文按照复杂性增加的程度研究了飞行控制系统的几种可能性方案,并且讨论了作为末制导导弹制导关键问题的每个方案的强壮性和适应性。脱靶距离是末制导性能的度量标准,受三个主要制导参数(有效导航比、相对稳定性和响应时间)的影响。飞行控制系统的实现方案是确定这些制导系统参数如何随已知气动飞行条件(高度和马赫数)而改变的重要因素。脱靶性能变坏程度最小的系统是最强壮的系统。结果证明,开环系统是不强壮的,并且其低阻尼使其不适用于雷达末制导系统;速率陀螺系统也是不强壮的,它的参数随高度、马赫数和重心位置的变化而大幅度变化;积分速率陀螺系统是强壮的,它的参数与高度和导弹的重心变化无关,但是该系统的响应时间长;加速度表系统是最强壮的,其参数与高度、马赫数和重心位置的改变无关,并且系统的响应快。本文还讨论了每种系统应用于雷达或红外等各类制导以及应用于坦克、舰船或飞机等各类目标的各种因素。
Modern end-to-end guided missiles require flight control systems to intercept missions within the defined flight airspace at the lowest cost. In this paper, several possibilities of flight control system are studied according to the increasing complexity, and the robustness and adaptability of each scheme as the key issue of terminal guidance missile are discussed. Off-target distance is a metric of final guidance performance, which is governed by three main guidance parameters (effective navigation ratio, relative stability and response time). Implementation of flight control systems is an important factor in determining how these guidance system parameters change with known aerodynamic flight conditions (altitude and Mach number). The system with the least deterioration in off-target performance is the strongest system. The results show that the open-loop system is not robust and its low damping makes it unsuitable for the terminal radar guidance system; the rate gyroscope system is also not robust and its parameters vary greatly with height, Mach number and center of gravity ; The integral velocity gyro system is robust, its parameters and heights are independent of the center of gravity of the missile, but the response time of the system is long; the accelerometer system is the strongest and its parameters are independent of height, Mach number, and center of gravity changes , And the system response fast. This article also discusses the various factors that each system applies to various types of guidance, such as radar or infrared, and to various targets such as tanks, ships or aircraft.