查询词典 navigation aid

It is a very important link for autonomous navigation of mobile robot to have an ability in accurate and reliable dead reckoning.

精确可靠的航迹推测是实现移动机器人自主导航的一个极为关键的环节。

An algorithm of Dead Reckoning/Baro-altimeter integrated navigation is presented, and proved experimentally.

给出了一种实用航位推算／高程计组合导航的算法，并进行了实际跑车验证。

The performance of main products is also provided. The importance of developing GPS/Dead Reckoning integrated navigation systems is presented in this dissertation.

本文论述了国内外陆地车辆导航系统的发展情况及国外主要产品的性能，论述了陆地车辆全球定位系统／航位推算组合导航系统发展的必要性及现状。

Fixes are a necessary part of navigation by dead reckoning because dead reckoning relies on estimates of speed , course .

补救方法是必要部分的航行所作死估计因为死估计依赖估价的速度，课程。

Helicopters used by the AAD in Antarctica use 'dead reckoning' as the primary form of navigation.

GPS作为辅助装置是有帮助的，包括国外研发的更先进的ILS辅助设备。

Global positioning system ; Dead reckoning ; Map Matching ; Integrated navigation ; Digital signal processor

全球定位系统；航位推算；地图匹配；组合导航；数字信号处理器

The dead reckoning system constructed by strapdown inertial navigation system and velocity-measuring device is studied.

本文对由捷联惯导和测速设备所搭建的航位推算系统进行了研究，提出了一种基于航位推算系统的组合导航算法。

Using dead reckoning algorithm,a novel method is presented to implement the dynamic initial fine alignment for vehicular navigation system.

针对载车在运动状态下的初始对准问题，提出了利用航位推算算法进行精对准的新方法，阐述了航位推算轨迹和真实轨迹相似的原理。

With indefinite noises and nonlinear characteristics, real-time estimating states of the dead reckoning unit is much more difficult than that of the other measuring sensors, which used in vehicle integrated navigation systems.

由于噪声的不确定性和自身的非线性特征，通过航位推算系统精确地估计车辆的状态是实际车辆组合导航中最困难的部分。

Gps as a starting point in order to achieve the case, dead reckoning navigation to achieve calculation speed and angular velocity of the object to draw the object distance and course.

详细说明：实现在以gps为起点的情况下，组合导航实现航位推算，计算物体的速度和角速度，从而得出物体的距离和航向。

You can snipe the second and third union leaders from this position.

您可以鹬第二和第三工会领袖从这一立场出发。

Aiming at the currently shortage of XML streams quality detecting, this paper proposes a new forecasting method of XML streams quality by least squares support vector machines, which is used the method of XML keys' vector matrix as windows, and vector product wavelet transform to multilevel decompose and refactor the XML streams series, that can fulfill real-time checking demand of XML quality, and ensure constraint, consist- ency and integrality. For even more adapting net load, it proposes a control strategy by weight and adaptive adjustment to ensure XML streams quality.

针对当前XML数据流质量检测存在的不足，提出构建XML键的矢量矩阵作为窗口，利用矢量积小波变换多级分解与重构XML数据流，再结合最小二乘支持向量机对XML数据流质量进行预测的一种方法，满足XML数据流质量重构时实时检测的要求，保证XML数据的约束性、一致性与完整性；为了更好的适应网络负载，采取加权与自适应窗口调整等调度策略充分保证XML数据流的质量检测。