导航系统

Aircraft is a combined research product of every high technology. It needs a very powerful engine to drive it to fly at high speed, a highly reliable fuselage to stand the action of variable stress, an advanced navigation control system to control the flying direction and posture of the flight, and a comfortable cabin environment.

航空飞行器是各高新技术研究成果的集成，要提供很强动力并保持快速飞行速度的发动机、能承受反复交变应力的可靠性很强的飞行壳体、可控制飞行方向和位姿的先进导航系统和操纵系统、舒适的人机环境空间等。

One key function of the new system is a voice activated navigation system.

一个关键的功能，新系统是一个语音激活的导航系统。

Aiming at the market of longdistance touring autobus, in order to satisfy the passengers demand for the information along the tour, an embedded system concerning autobus tour guiding was put forward, referring to the autobus navigation system.

针对长途旅游客车市场，为满足乘客在旅途中对沿途信息的需要，参考汽车导航系统，提出了一个面向客车乘客的嵌入式汽车导游系统。

Horizontal gyro drift is measured in state of azimuthal alignment by the two localization laws of the three directions of north,west and up,as well as east,north and up.

由于陀螺漂移是惯性导航系统中的一个最重要的误差源[1]，因此，在惯性元件自身精度一定的情况下，初始测漂的精度直接决定了惯导系统的定位精度。

Deals with the analysis and research on the automatic landing system of a pilotless aircraft.

论述了用DGPS／SINS／RA组合导航系统引导的某无人机自动着陆系统的总体方案，利用该无人机的小扰动线性化方程，对其轨迹控制系统进行了分析设计。

This paper first elaborated the principle of SINS, some interrelated information,and the affect of renewed arithmetic to the system"s precision. Then, we studied thequaternion in traditional renewed attitude arithmetic. The quaternion is simple, andwhen run it into computer, it"s time saving. So, this arithmetic is often adopted byengineering. However, the quaternion brought unexchangeable error inevitably. Whenthe carrying body moves in highly dynamic situation, the error would become larger.So we should take effective measure to get over it.

本文首先论述了捷联式惯性导航系统的工作原理及相关知识，捷联惯导系统姿态更新算法对系统精度的影响；其次研究了传统的姿态更新算法中四元数法，该算法简单，计算量小，因而在工程中经常被采用，但是在四元数法中不可避免的引入了不可交换性误差，特别是在载体处于高动态环境时，这种误差就会很大，必须采取有效措施加以克服。

Adopt project practical quaternion algorithm of strapdown navigation system, Analyze systematic error source, emulation prove the output change of SINS in there is device error of inertia and the initial condition of collimation error.

采用了工程上实用的四元数捷联导航系统的算法，分析了系统误差源，仿真验证了捷联惯导系统在有惯性器件误差及初始对准误差情况下的输出变化。

The QX56 is available in two-wheel and four-wheel drive models, both equipped with a standard 5.6-liter DOHC V8 engine, 5-speed automatic transmission, Sojourner leather-appointed seating, Infiniti Navigation System, RearView Monitor, Bluetooth Hands-Free Phone System, power-operated tailgate and an independent rear suspension with load leveling.

QX56有两轮和四轮驱动两种车型，这两种车都可搭载标准的5.6升DOHC V8引擎，配合一个5速自动变速器和Sojourner真皮座椅，英菲尼迪导航系统，倒车监视器，蓝牙免提电话系统，电动尾门和带自动水平独立后悬挂系统。

Chapter seven emphasis on the deployment of the Internet-based Trip Guidance System and study the key problem of which faces. Discusses the feasibility of Internet used on TGS and the question of how to enhance the service ability of the system.

第七章重点提出了实现基于Internet的出行导航系统以及所面临的几个关键问题，讨论了Internet用于TGS的可行性，并探讨了如何有效的采用相应会显著减少系统的调用和显示时间，提高系统的服务能力的问题。

A method to drive dipe by using inertial navigation is discussed in this paper. The mathermetic model ofinclination survey system, wnich codsis of three accelerometers and three magnetometers, and an approachto realize it are presented.

本文根据飞机定向的方法，讨论了惯性导航系统在确定油井姿态中的应用，并且推导出了由三个加速度计和三个磁通门构成的测斜系统的数学模型以及测斜系统的实现方法。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。