查询词典 navigation

The calculation of initial alignment direction cosine matrix between SINS body frame and navigation reference frame is expanded into three parts:(1) the DCM between i0 frame and n frame is easily obtained via local geographical coordinates and initial alignment time;(2) by expressing SINS specific force equation in b frame and by the aid of external velocity log, the constant DCM from i(subscript 0) frame to i0 frame is achieved;(3) attitude updating using gyro samples gets the DCM between b frame and i(subscript b0) frame.

将捷联惯组坐标系与导航坐标系之间的初始对准姿态矩阵的实现分解为三步骤：(1)通过地理位置和初始对准时间求解i0系至n系的变换矩阵；(2)通过惯导比力方程变形，引入刚速仪速度辅助，求解从i(下标 b0)系至i0系的常值变换矩阵；(3)使用姿态更新算法实时计算b相对于i(下标 b0)系的变换矩阵。

Early radio direction finder is a radio navigation equipment.

无线电测向仪是早期的一种无线电导航设备。

A modern direction finder, as was then used for radio navigation in large passenger ships, used a steerable ring antenna to determine the airship's position from any two radio transmitters either land or ship-based.

一个现代化的方向搜索，因为当时使用的无线电导航大型客船，使用环形天线可操纵的飞艇，以确定的立场，任何两个无线电发射机或船舶或者土地为基础的。

The navigation systems include the following main subsystems: ADF automatic direction finder — ADF system provide a display of the relative bearing to a selected ground transmitter.

自动定向机——此系统提供一个相对一个选定的地面发射台的相对方位角显示。

The software can solve this problem, because it will be key figures for the nine direction navigation key mapping.

该软件能够解决这个问题，因为这将是关键的数字为9方向导航键映射。

At last, the DOP of barometric altimeter aided Beidou navigation was given, and the effect of D OP on positioning accuracy was analyzed.

最后定义了气压高度辅助的北斗导航下的几何误差因子，并分析了其对定位精度的影响。

In simple navigation, you can turn left, right, up, or down using the arrow keys.

在简单飞行模式，可以用方向键左右转或上下移动。

Because of the regulation of hydroelectric power station, there are infinite influences on navigation in downstream.

在航道的整治设计中，对水面线的研究一直是一个重要课题。

So that our efforts for the development of your business downwind aids to navigation.

让我们的努力为您企业的发展顺风助航。

The navigation is easy to follow, and animation illustrates the principles of Doyen's technology.

导航是容易执行，和动画演示的杜瓦延的技术的原则。

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。