学生课外科技创新教育体系的构建

本文通过对学生电子课外科技创新存在问题的分析,将数字化教育理念引入课外电子科技创新,建立了包括教材、课程、网络平台及自制实验设备等完整的课外电子创新体系教育体系.实践证明,新的教育体系有利于电子科技创新活动的规范化管理,可以提高教师指导效率和节省经费开支,对学生工程实践和创新能力的培养起到重要的促进作用.     

A new three-dimensional chaotic system and its modified generalized projective synchronization

Based on the Chen chaotic system,this paper constructs a new three-dimensional chaotic system with higher order nonlinear term and studies the basic dynamic behaviours of the system. The modified generalized projective synchronization has been observed in the coupled new three-dimensional chaotic system with unknown parameters. Furthermore,based on Lyapunov stability theory,it obtains the control laws and adaptive laws of parameters to make modified generalized projective synchronization of the coupled new three-dimensional chaotic systems. Numerical simulation results are presented to illustrate the effectiveness of this method.     

Adaptive generalized matrix projective lag synchronization between two different complex networks with non-identical nodes and different dimensions

<正>The adaptive generalized matrix projective lag synchronization between two different complex networks with non-identical nodes and different dimensions is investigated in this paper.Based on Lyapunov stability theory and Barbalat’s lemma,generalized matrix projective lag synchronization criteria are derived by using the adaptive control method.Furthermore,each network can be undirected or directed,connected or disconnected,and nodes in either network may have identical or different dynamics.The proposed strategy is applicable to almost all kinds of complex networks.In addition,numerical simulation results are presented to illustrate the effectiveness of this method,showing that the synchronization speed is sensitively influenced by the adaptive law strength,the network size,and the network topological structure.     

电工学实验改革以及自制实验示范建设

“电工学”实验课程对加深理论教学知识的理解和掌握具有十分重要的作用。本文分析了目前电工学实验内容设置上普遍存在的问题,提出了在专业背景下电工学实验内容的改革思路。我们设计了自制的步进电机特性测试实验装嚣,用于机电类专业学生的电工学实验,通过实验教学,该实验内容设置获得了学生的好评,在学校的电工学实验改革中起到了很好的示范作用。     

电子技术课程建设探索与实践

电子技术课程由模拟电子技术和数字电路与数字逻辑两门课程组成,是电子信息类专业重要技术基础课。为了解决教学中存在的矛盾,我们在电子技术课程建设中对课程的教学内容、教材建设、教学手段、师资队伍建设等方面进行了深入的改革。本文介绍了浙江工业大学电子技术课程建设的具体做法、取得的成果和主要特色。实践证明,课程建设是提高教学质量、推进素质教育的重要手段。     

CMOS门电路输入极限参数与电源电压的关系

CMOS门电路是数字电路课程中的重要内容，CMOS门电路的极限参数是教学的难点和重点，课堂教学中有定性分析，无具体理论探究，导致学生阅读数据手册时无法理解输入极限参数与电源电压的关系。本文采用公式法和逐段线性近似法分析了CMOS门电路的电压传输特性曲线，并基于Cadence平台进行了仿真验证。本文对CMOS门电路极限参数的教学有一定的指导作用。     

Nonlinear feedback synchronisation control between fractional-order and integer-order chaotic systems

This paper focuses on the synchronisation between fractional-order and integer-order chaotic systems.Based on Lyapunov stability theory and numerical differentiation,a nonlinear feedback controller is obtained to achieve the synchronisation between fractional-order and integer-order chaotic systems.Numerical simulation results are presented to illustrate the effectiveness of this method.     

A new four-dimensional hyperchaotic Chen system and its generalized synchronization

Based on the Chen chaotic system, a new four-dimensional hyperchaotic Chen system is constructed, and the basic dynamic behaviours of the system were studied, and the generalized synchronization has been observed in the coupled four-dimensional hyperchaotic Chen system with unknown parameters. The Routh--Hurwitz theorem is used to derive the conditions of stability of this system. Furthermore based on Lyapunov stability theory, the control laws and adaptive laws of parameters are obtained to make generalized synchronization of the coupled new four-dimensional hyperchaotic Chen systems. Numerical simulation results are presented to illustrate the effectiveness of this method.     

激光导引系统主要技术参数分析

为提高激光制导武器的综合效能,需合理选择激光导引系统的各项技术参数.根据激光半主动制导工作原理,结合理论计算、实验测试结果,全面系统分析了激光导引头探测灵敏阈、激光脉冲特性、激光编解码精度、抗干扰能力等影响激光制导武器性能的技术参数.研究表明:在复杂战场环境条件下,提高激光照射能量、导引头解码精度、选择新的码型、适"-3的激光发散角可提高激光制导武器作战效能;作战中,合理选择激光照射时机,如采用激光延迟照射方案,可减少激光制导武器被对方干扰的概率.     

基于C8051F326的HART-USB转换器的实现与应用

鉴于HART总线的广泛应用,设计了一款基于C8051F326的HART-USB转换器,用于变送器和PC机之间的数据互通.该文包括了HART-USB转换器的硬件设计、状态机设计以及应用于某温度变送器的实例.该款HART-USB转换器具有低成本、小体积、高集成度、高稳定性的优点,前景良好.