导航系统

The network-torpedo can realize real time identification, pursuit and attack on target with the information obtained effectively from battlefield at any time. We put emphasis on the functions and principles of several key technologies, including acoustic communication system, satellite navigation location system and power system. Finally, we propose some applied ideas for the network-torpedo.

展示了网络鱼雷以其能随时高效获取战场环境信息来实现对目标的实时识别、跟踪和攻击，并着重从功能及原理上对水声通信系统、卫星导航定位系统及动力系统这几项关键技术进行了较详细的论述，最后提出了网络鱼雷的作战应用设想，展望了其应用前景。

DR consists of Doppler Velocity Log,Electronic Compass,GPS and the speed which is transformed from airscrew.

论文根据实际需求，设计了利用捷联惯性组合系统作为主系统，多普勒计程仪、GPS、电子罗盘和由螺旋桨转换过来的速率信息构成的DR系统作为辅助子系统的水下组合导航定位系统。

Contrapose the phenomenon that the circler error probability is a little larger in the ground dynamic navigation test of the laser gyroscope strapdown inertial navigation system , a better vibration damping system needs to be designed for SINS with laser gyroscope .

针对激光陀螺捷联惯导系统在地面动态导航测试中圆概率误差偏大的现象，要求给激光陀螺捷联惯导系统设计出性能优良的减振系统。

Shenzhen LihengWeiye technology CO., LT is a agent and distributor of car electronics semiconductor which concludes the car controller, sensor, high voltage diode dynatron etc .Meantime, they apply the products in Car electronics ESM ofthe front end application, Powertrain system, Car underpan system

立恒伟业公司代理分销的汽车电子半导体，包括了汽车级微控制器，传感器，高压二，三极管等半导体产品，配套应用于汽车电子前端应用的发动机控制系统，动力转向系统，底盘悬挂系统，车身控制系统等产品与后端应用的影音娱乐，安全导航产品。

Embedded Geography Information System is an integration of embedded products and GIS, and a hybrid system of software and hardware. It is an ideally solution of navigation, location, geography information query and spatial data management for mobile user.

嵌入式地理信息系统是集成GIS功能的嵌入式系统产品，是系统设计与开发层次上的应用，是一个软硬件混合的系统，它是移动用户导航、定位、地图查询和空间数据管理的一种理想解决方案。

The SINS of FOG is designed and implemented based on DSP. The system is with a dual CPU structure. DSP is used to process data while MCU controls data acquisition and the communication between DSP and MCU is achieved by dual-port RAM. All of these constitute a small strap-down navigation system. Meanwhile introduced a kind of algorithm of SINS, SPI communication and the second boot Loder of TMS320C6713 in briefly. After testing, the system speed and accuracy satisfy design requirements and the system has been applied to actual system.

介绍了一种基于DSP的光纤陀螺捷联惯导系统的设计与实现方法；系统采用DSP+MCU的体系结构，DSP主要完成导航计算，利用单片机实现对数据采集模块的控制，并通过双口RAM实现单片机和DSP的数据通信，构成了一套小型捷联惯导系统，同时给出了一种捷联惯导算法编排，简要介绍了SPI通信和TMS320C6713的二次bootloder方式；经测试，系统速度和精度都满足了设计要求，已应用于实际系统。

This paper makes a comparative analysis on the function of six cross-database search systems such as SearchLight, NLM Gateway, ISI CrossSearch, CALIS, CSDL and CNKI at home and abroad. In aspects of resources navigation, search function, search results display, content sensitive links, personalized service, special function, as well as other functions, the author puts forward some suggestions on the perfection of cross-database search system function.

选取国内外较有代表性的6个跨库检索系统：SearchLight、NLM Gateway、ISI CrossSearch、CALIS的统一检索平台、CSDL的集成检索系统、CNKI的跨库检索系统，从资源导航功能、检索功能、检索结果显示功能、内容敏感链接功能、个性化服务功能、特色功能、其他辅助功能7个方面对其进行比较分析，提出完善跨库检索系统功能的几点建议。

By means of the 3Ds Max and Flash software ,this system reappeared the structure of various automobile parts and their working principle and moving mode,which made the teaching more vividly and lively; Using Goldwave and LAME MP3 Encoder audio-frequency software effectively compressed the system audio media document, so it could reduce the overall system possessive amount; Many kinds of alternately responsible types such as the button,hot spot,text entry and so on,and the function of jumps transfers and link including the hypertext link,goto sentence, navigation icon had been used ingeniously and comprehensivly,which was more helpful to complete successfuly in the interactive design .In order to realize the network publishing of the course soft,source program was optimized on the base of facing to the CD-ROM package.

在系统设计过程中，利用3Ds Max和Flash等动画设计软件虚拟再现了汽车各部件的结构、工作原理和运动方式，使教学更加生动、活泼；利用Goldwave、Lame图形界面Mp3压缩器等音频处理软件有效压缩了系统中的音频媒体文件，进而减少了整个系统的磁盘占有量；巧妙而综合地利用了按钮、热区域、文本框等多种交互响应类型和超文本链接、goto语句、导航图标等跳转链接功能，成功的完成了本系统的交互设计；在面向CD-ROM打包发布的基础上，对源程序进行优化处理，实现了课件的网络发布。

With the rapid developments of science and technology, the modern avion simulation system faces two requirements. One is function requirement and the other is technology renovation requirement. As to the first requirement, functions of modern avion are becoming more and more abundant, which causes the flight simulation training change greatly. As to the second requirement, with the development and adoption of new technology, high verisimilitude requirements are raised to avion simulation system.

中文题名现代军机飞行仿真系统的研究副题名外文题名 A study on modern avion flight simulation system 论文作者黄安祥导师李明陈宗基学科专业导航、制导与控制研究领域\研究方向学位级别博士学位授予单位北京航空航天大学学位授予日期2003 论文页码总数150页关键词军用飞机飞行仿真系统仿真馆藏号BSLW /2003 /V271 /3 随着科学技木的飞速发展，现代军机仿真训练系统面临两大需求：一是功能需求，现代军机功能的增强，使飞行仿真训练内容发生了较大变化；二是技术更新需求，新技术的发展及其在仿真系统中的应用，对军机仿真系统的逼真度提出了更高的要求。

The first and the second chapters will discuss the significance of reseach, and system plan of the Marine SHARS, including the design of system function, the selection of inertial devices and design of system function, and A/D convertors and the construction of hardwares and softwares of the Marine SHARS.

第一部分讨论了舰载捷联式航向姿态基准系统的选题意义、系统总体方案的设计思想，其中包括系统功能的方案设计、惯性仪表和模/数转换电路的选择、导航计算机系统硬件和软件的方案设计等。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐