方位误差

Its theory is based on spherical astronomy and error theory, the main research on the ground coordinates of the points and ground connections between two points, the determination of the azimuth principle, measurement method, calculation method of operating procedures and go.

它的理论基础是球面天文学和误差理论，主要研究地面坐标点和地面两点之间连线的方位角的测定原理、测定方法、操作程序和归算方法。

In this article, authors introduce data-getting methods of a shield attitude measure system composed of laser target, total station and PLC, and state calculation methods to get coordinates and angles of the shield machine with these measure data.

在利用盾构机进行的隧道掘进施工工程中，为了将掘进线路与隧道设计曲线之间的误差控制在一定范围内，需要及时测量盾构机的位置和掘进的方位角。

Engineers can compare calculation results with the tunnel design curve in order to obtain deviation values of horizontal position, vertical position and angles of the shield machine, and can adopt these results to control tunneling operations of the shield machine.

隧道设计曲线是在城市三维坐标系中设计的，要得到盾构机掘进过程中的误差，就必须通过测量计算得到盾构机在绝对坐标系中的坐标位置和方位角。

It is not ignorable that there is base datum with less precision to support the network computation and adjustment of a constrained GPS network.

在处理如GPS控制网的约束平差或以GPS测定导线网的方位角的平差计算中，是否考虑起始数据的误差给平差结果及其精度评定带来的影响是不可忽视的。

In the traditional iteration of the standard trajectory based on the distance and azimuth angle,the revision of the attitude of the exploring point will bring the error.

传统的以大地距离和大地方位角为基础的标准弹道迭代方法要对目标点的高程和爆高进行归算修正，因此会带来误差。

Firstly, this paper gives a brief introduction on the principles and the form of GPS system; On the base of the demand of the moving bi-static/multi-static radar measuring real-time position of the transmitter and the receiver, separately the application of GPS in the radar is discussed; Formulas of the distance and the azimuth the receiver relative to the transmitter are ...

论文首先简单介绍GPS的工作原理及其系统组成；根据在运动平台上的双/多基地雷达需要对发射站和接收站位置进行实时定位的要求，研究GPS在该雷达中的应用；根据GPS提供的接收站经纬度信息，推导了接收站相对于发射站的距离和方位角的计算公式；讨论了GPS定位误差对接收站定位和对目标定位精度的影响，结果表明GPS可以满足该雷达系统的要求。

Research methods: Taking the repetition survey for precise control of outside Nanliang - Taihang Mountain Tunnel as an example, the discussion is made on the influence on the error in penetrating tunnel by two results in this paper through making analyses of the corresponding baselines＇ distance and azimuth.

研究方法：以南梁-太行山隧道洞外精密控制测量复测为例，通过比较分析同名基线的距离和方位角，考察两次结果对隧道贯通误差的影响。

A new motion compensation algorithm dealing with spatially variant phase error in azimuth direction is purposed in this article.

摘要该文提出了一种用于机载合成孔径雷达的方位向空变相位误差补偿算法。

The equation of ESCDAC is presented. Secondly, Based on this equation and the independent characteristic of observation valves, the ESR of the azimuth measurement error is presented by full - difference of the measurement equation which acts as the precision of ESCDAC.

然后以该方程为基础，根据该方程中各个观测量相互独立的特点，方位测量误差的均方根值可由测向方程的全微分求得，并将其作为电扫描恒差比幅测向的精度，由该精度公式可以看出，电扫描恒差比幅测向有很高的精度，并且在不同的角度上，其精度保持稳定。

The tilt of the base surrounding the axis vertical to the FOG axis induces the same grade error on azimuth and the orientation accuracy is degraded extremely.

基座平面绕垂直于陀螺轴的倾角将直接引起一个同样量级的方位角测量误差，从而在较大程度上影响寻北精度。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了