The paper mainly discussed and analyzed aircraft landing gear using model reference adaptive control and mcs ( minimal control synthesis algorithm ) , built up the mathematics model and linear state equations of aircraft landing gear during the landing and taxiing and analyzed the virtues of model reference adaptive and minimal control synthesis algorithm 本论文主要是采用模型参考自适应和最小控制综合算法( minimalcontrolsynthesisalgorithm )来描述飞机起落架系统,建立了完整的起落架着陆滑跑的数学模型和线性状态控制方程,分析了模型参考自适应和最小控制综合算法的优点。
This asic can afford 11 bit address foot at most , i . e . 2048 address states ( 211 ) , which decrease the collide of code , and the probability of scan the address port illegal , on the other hand , it also can afford 11 bit data foot at most , i . e . 2048 data states ( 211 ) 该asic最大拥有11位的地址管脚，可提供多达2048 （ 211 ）个地址编码，因此极大的减少了码的冲突和非法对编码进行扫描以使匹配的可能性,具有极强的保密性和智能性。同时也使得它最多可拥有11位的数据管脚，提供2048个数据编码，可完成2048个状态控制。
Abstract : the present article introduces the principal factors governingthe movement process of the turnover machine , describes the revamp on the original control system of the main driver and heavy truck hauling device of the turnover machine including application of quadrant logic speed regulation system and supersynchronous logic compensating state control system into the revamp of the machine as well as the function and features of the systems , and discusses the movement process of the main driver of the turnover machine 文摘:介绍翻车机的运行过程要素，对翻车机主传动及重车牵引原控制系统进行改造，引入四象限逻辑控制调速系统及超同步逻辑补偿状态控制系统，阐述其性能、特点及工作过程，针对翻车机主传动运行过程展开讨论。
It has been playing an important role in equipping all kinds of arms and services for campaigns , tactical exercises and emergent actions etc . based on the detailed analysis of the exchange ' s architecture and implementing , this thesis points out some disadvantages of the device , such as too many absolute components , not very high enough reliability and security , very large size and weight , operating and maintaining difficultly . considering low power requirement and man - machine interface optimizing design at the same time , the thesis come up with an integrated design scheme to the previous device based on " mcu + cpld / fpga architecture " : ( 1 ) signal frequency dividing , timing frequency producing , 20 customers " led states controlling are implemented in cpld ; ( 2 ) decoding , latching data and controlling signals are implemented in cpld by bus interface between mcu and cpld ; ( 3 ) chip selecting principles and mcu idle mode design are completed under the consideration of low power requirement ; ( 4 ) operation by chinese lcd menus is adopted in the man - machine interface 本项目以该交换机为研究对象，在详细分析原设备的系统结构和功能实现方式的基础上，指出该机型在使用过程中存在技术相对陈旧、分立元件过多、可靠性和保密性不够、体积大、重量大、维修困难等问题，同时结合系统的低功耗需求和优化人机接口设计，本文提出基于“单片机+ cpld fpga体系结构”的集成化设计方案：在cpld中实现信号音分频和计时频率生成电路、 20路用户led状态控制电路； cpld与单片机以总线接口方式实现译码、数据和控制信号锁存功能的vhdl设计；基于低功耗设计的器件选型方案和单片机待机模式设计；人机接口的lcd菜单操作方式。
Although there have been many application instances in the field of input / output device technology , we need an specific project and technology route aimed at an given application . in this thesis , we combine the introduction and analysis of relative technology to describe the accomplishment of a coordinate collecting device which is based on incremental rotary encoder . this device is an specific device applied to collect the corrdinate displacement of ground image ’ s three - dimensional model created by full digital photogrammetric station . cpld chip and vhdl are applied in this device to carry out the following work : phase control of the electrical pulse created by incremental rotary encoder , counting the number of electrical pulse , controling the state of signal processing circuit , exchanging data between this circuit and pci control 本文结合相关技术的介绍和分析,描述了一个基于增量式旋转编码器的坐标参量采集接口卡的实现,此接口卡是一种用于采集全数字摄影测量系统地面影像模型坐标位移量的专用设备,该设备采用cpld器件和vhdl语言实现增量式旋转编码器的脉冲信号鉴相和计数、信号处理部分的状态控制以及和pci总线芯片ch365之间的数据交换和通信功能,同时该设备的驱动程序基于wdm模式,并且配置有结构良好的动态链接库程序作为系统软件和驱动程序之间的数据和控制交互中间接口,能够方便地运行在windows98 / 2000 / xp操作系统平台上,具有实时性强、工作稳定、通用性较好和性价比高等特点。
A noval optics measurement device , the master control computer in the photoelectric theodolite , has become the commanding and controlling center system , which can complete data communication with many transducers internally and externally do with the guidance equipment , such as the center computer . and it needs to real - time complete data acquisition , data fusion , digital guidance , state switching , state controlling and function testing , all of which can be completed for the dominance of the real - time multitasking windows nt operation system 随着武器装备的不断发展，对靶场测量设备也提出了更高的要求，新型光学测量设备?光电经纬仪的主控计算机系统已成为指挥控制的中心系统，它对内与若干传感器进行数据通讯，对外与中心计算机等引导设备进行数据通讯，它实时进行着数据采集、数据融合、数字引导、状态切换、状态控制和功能检测。
From the numerical results , we can find that the exact linearization controlling methods has quite good control effect when it is applied to controlling chaos to steady states and controlling steady states to circle solutions . therefore this methods is a simple and effective way to the study of controlling chaos 从数值模拟的结果可以看出：应用精确线性化控制方法将混沌状态控制为稳定状态、或者将稳定状态控制为周期解都具有很好的控制效果，是一种研究混沌控制既简单又有效的方法。
