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a variable structure
相关语句
  变结构
    Study on a Variable Structure Guidance Law Against the Escape Maneuvering Target at Endgame
    目标末端逃逸的变结构制导律研究
短句来源
    To solute the nonlinear change of aerodynamic parameters and cross coupling among three channels caused by large angle-of-attack of slide attitude control system in vertical launching missile while fast turning, a variable structure control system was designed by partial status feedback and variable structure control while the nonlinear was treated as small random parameter disturbance of linear model for the controlled object, and the cross coupling was dealt with method of coupling suppressing.
    为处理垂直发射防空导弹快速转弯时侧向姿态控制系统产生大攻角导致的弹体气动参数非线性变化和三通道交叉耦合,将非线性作为被控对象线性模型参数的小范围随机摄变,并采用抑耦法对交叉耦合作等效处理,应用部分状态反馈和变结构控制方法设计了一种变结构控制系统。
短句来源
    Based on the mathematical model of air-to-air missile control system,a variable structure control law is designed.
    对空空导弹控制系统建立了数学模型,并在此基础上设计了变结构控制律。
短句来源
    A VARIABLE STRUCTURE GUIDANCE LAW BASED ON RELATIVE VELOCITY DEFLECTION ANGLE
    基于相对速度偏角的变结构导引律
短句来源
    A Variable Structure Controlling Method Applied in Electrohydraulic Servo System of Missile
    导弹电液伺服机构的一种变结构控制器设计
短句来源
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  a variable structure
It was found that that the temperature-stress field varies significantly in different subsurface parts of the component and thus creates a variable structure across its depth.
      
The system as a whole is considered to have a variable structure.
      
The general results are used to analyze the stability conditions for the sliding mode in a nonstationary automatic-control system with a variable structure of the third order
      
We derive sufficient conditions for the technical stability of forced states of automatic control systems with a variable structure depending on the derivatives of the control function.
      
Sufficient conditions for technical stability of functional states of controlled systems with a variable structure are derived.
      
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A variable structure control (VSC) method to deal with the problem of "crawling" in radar servosystem is presented. The VSC method is of good robustness against uncertainties. Combined with the traditional PID control method, it can achieve satisfactory results, Experiments have been carried out on the radar, The results show that the method proposed herewith can improve the performance of radar servosystem with the small control signal.

针对雷达伺服系统在小信号控制时存在的爬行问题,提出了一种变结构控制方法。这种方法对系统中各种不确定性有很强的鲁棒性。它和传统的PID方法相结合可得到满意的控制效果。作者在某型雷达上进行了实验,结果表明这种方法提高了雷达伺服系统在小信号时的伺服性能。

A variable structure adaptive control system for air to air missiles with thrust vectoring control is designed. Thrust vectoring actuators are used for the missiles to get supermaneuver flight ability. The designed control law includes two control parts, i.e. the continuous control part and the discontinuous control part, which are implemented by aerodynamics and reaction jet actuators respectively. Moreover, with consideration that while the missiles are supermaneuvering, the system dynamic...

A variable structure adaptive control system for air to air missiles with thrust vectoring control is designed. Thrust vectoring actuators are used for the missiles to get supermaneuver flight ability. The designed control law includes two control parts, i.e. the continuous control part and the discontinuous control part, which are implemented by aerodynamics and reaction jet actuators respectively. Moreover, with consideration that while the missiles are supermaneuvering, the system dynamic parameters are poorly known and rapidly changing, an adaptive estimation algorithm for the system parameter variations is proposed to simplify the control system design. Numerical simulation results are given to illustrate its effectiveness.

提出了一种适用于带推力矢量空空导弹的变结构自适应控制器设计方法 ,推力矢量的采用是为了使导弹获得超机动能力以对付强机动目标。所设计的变结构控制律包括两部分 ,即线性控制部分和非线性切换控制部分 ,其作用力由气动舵面和非线性反作用喷气装置提供。在设计控制律时引入了对系统参数变化的自适应算法 ,简化了控制器的设计。数字仿真表明其有效。

Measurement noise of sensor in guidance system is the main cause of degradation of guidance performance. To reduce its effects, a certain measure must be taken according to the signal to noise ratio in the guidance loop. In this paper, the robust guidance under the measurement noise of relative range rate is studied. A variable structure guidance law is first proposed, then two different cases are considered.The deterministic relationships that the guidance law parameters must meet for robust guidance...

Measurement noise of sensor in guidance system is the main cause of degradation of guidance performance. To reduce its effects, a certain measure must be taken according to the signal to noise ratio in the guidance loop. In this paper, the robust guidance under the measurement noise of relative range rate is studied. A variable structure guidance law is first proposed, then two different cases are considered.The deterministic relationships that the guidance law parameters must meet for robust guidance and successful interception are presented. The results are very helpful to the designs of modern advanced radar guidance systems.

研究存在相对速度测量噪声时的鲁棒制导问题 ,根据一类变结构制导规律 ,分析了相对速度测量噪声、制导参数对导引收敛性的影响 ,以弹道收敛为准则 ,给出了实现鲁棒制导的条件 ,研究结果对设计先进的雷达制导系统具有重要意义。

 
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