结构光三维视觉及其在工业中的应用

介绍结构了光三维视觉原理及实现方法，讨论了结构光三维视觉在工业视觉检测和机器人的导引中的应用，所列实例体现了结构光视觉应用的最新研究成果。     

雷达寻的技术在远程精确制导导弹中的应用

论述了远程精确制导导弹末段雷达寻的装置的制约因素．分析了末段可机动最小距离、探测域、电磁静默、杂波和目标识别等的影响。在比较时域一维、频域一维、时频二维和合成孔径雷达(SAR)等高分辨处理的基础上．提出了高分辨探测的主要技术途径。最后给出了一个主被动复合寻的系统和SAR探测装置的工作模式。     

试论职业院校的生涯辅导工作--由杨贤江"全人生指导"引发的思考

杨贤江的“全人生指导”与职业院校的生涯辅导有着许多相同相似的方面,二者的意义尤为重大。然而目前职业院校的生涯辅导工作存在着许多不容忽视的问题。对此,本文就职业院校的生涯辅导工作的重要性和必要性、应有的涵义以及加强措施作了相关思考。     

红外仿真装置中的光标二级控制技术

为了实现对光束目标位置的高精度控制，可以采用二级控制方法──粗定位与精定位。这种控制策略在红外仿真装置中得到了应用。     

反舰导弹最优滑模制导律仿真研究

针对传统比例导引法攻击机动目标的不足,建立了三维空间中反舰导弹和目标的相对运动模型,在研究反舰导弹攻击非机动目标的最优制导律基础上,利用俯仰和偏航两个平面相叠加的方法,结合滑模控制理论设计了工程上易于实现的三维模型下的反舰导弹最优滑模制导律。仿真结果表明,给出的导引律在攻击机动目标时制导精度高、脱靶量小,导引控制过程具有良好的动态性,性能明显优于传统的比例导引律。     

可重复使用运载器预测-校正再入制导研究

研究了可重复使用运载器的预测-校正再入制导方案。通过对运动方程积分预测飞行器在能量管理段界面处的终端状态,实时调整迎角和倾侧角方案,以使终端状态误差满足要求。对预测-校正算法的实时性问题进行了分析,并给出了解决方案。仿真结果表明,对于不同的初始再入条件,制导方案都可以将飞行器导引到能量管理段界面。     

远程空空导弹攻防成功概率研究

攻防成功概率是衡量远程空空导弹武器系统作战效能的关键性指标。在研究被动/主动双模导引头远程空空导弹末制导截获概率模型和载机生存概率模型的基础上,建立了攻防成功概率的计算模型,并以F-16战斗机为打击目标进行了验证,进而根据算例结果分析了诸因素对攻防成功概率的影响,为远程空空导弹的作战效能评估提供了有益的参考。     

Optimal predictive sliding-mode guidance law for intercepting near-space hypersonic maneuvering target

The design of optimal guidance law for intercepting a near-space hypersonic maneuvering target with bounded inputs is considered. Firstly, a maneuvering model for near-space hypersonic aircraft is given. Then, the aircraft acceleration prediction can be obtained using this model with two neural networks. By using the target acceleration prediction, which is taken into account when calculating the Zero Effort Miss(ZEM), an optimal sliding-mode guidance law is proposed to fulfill the guidance task...     

Saturated super-twisting sliding mode missile guidance

This paper concentrates on developing a missile terminal guidance law against a highly maneuvering target whose maneuvering acceleration is very close to that of the missile or even exceeds the missile normal acceleration in a finite period of time. A new saturated super-twisting algorithm is proposed and applied to the design of missile guidance law. The proposed algorithm has the advantages of simple structure, easy parameter tuning rules and a full utilization of the limit control input. The designed saturated super-twisting sliding mode guidance law is then employed in a missile guidance system. Simulation and its superior performance against strong maneuvering targets is demonstrated.     

A unified formulation of optimal guidance-to-collision law for accelerating and decelerating targets

This paper provides a unified formulation of optimal guidance-to-collision law for a target with an arbitrary acceleration or deceleration. The collision course for general target acceleration or deceleration is first determined from the engagement geometry in conjunction with the nonlinear engagement kinematics in the proposed approach. The heading error defined in the collision course is then adopted as a variable to be nullified for accomplishing the intercept condition.The proposed guidance ...