| 1. | The influence of surveying distance error on the boundary point ' s accuracy
测距误差对界址点精度的影响 |
| 2. | Miss distance error due to optical distortion of multiple ccd butting system
拼接相机系统中畸变误差研究 |
| 3. | This article pays attention to make use of curve matching to correct the distance error of dead - reckoning . matching algorithm improved by woleson is dependent on redrawing characteristic point and corresponding relation
Woleson等人提出的曲线匹配算法，在很大程度上依赖于特征点的提取和特征点的对应。 |
| 4. | With the error model , we deduce a dh parameters error calibrating model based on distance error which avoid the transition between the robot coordinate and the survey coordinate
探讨了运动学参数误差标定、机器人末端位姿误差补偿、运动学参数误差优化分配的方法。其中，着重论述了关节间隙对机器人运动学参数影响。 |
| 5. | In the management of city transportation , navigation of satellite cannot meet the practical requirement because of shielding and interfering of satellite signal . therefore , map matching and dead - reckoning ( dr ) is used to assistant navigation . this combination is defined as gps / dr integrated navigation system , in which the map matching is used for correcting the orientation and distance errors of dr
而在城市交通管理的应用中，由于卫星定位信号经常会受到建筑物的遮挡和干扰，卫星定位无法满足导航的实际要求，通常需用地图匹配和航位推算器( dead - reckoning ， dr )的方法进行辅助导航，这种导航方式称为组合导航系统，其中地图匹配可用来修正dr的方向和距离的系统误差，以便在卫星信号失锁时，提高dr自主定位的精度。 |
| 6. | Aiming at the enhanced positioning accuracy of wireless sensor network node location , an improved positioning algorithm which uses a differential error correction scheme that is designed to reduce cumulative distance error and node location error accumulated over the multiple hops is proposed in this paper , together with its basic principle and realization issues
摘要本文针对无线传感器网络节点的定位精度问题，提出了一种采用误差修正的方法来降低累积距离误差和定位误差的传感器网络节点定位改进算法，给出了该算法的基本原理与实现方法。 |
| 7. | Abstract : the attitude error performance of electrostatic gyro should be understood and the relevant error equations must be set up in order to ensure the navigation precision of esgm . the relation between the navigation errors and the attitude errors of gyro was derived by use of spherical triangle . the simulation results show that the temporal performances of the longitudinal and distance errors which come from the initial alignment errors are periodically variational . they also show that the longitudinal and distance errors resulted from gyro drifts are not convergent in time . thus , the effects of initial alignment errors and gyro drifts can not be neglected and must be estimated and compensated
文摘:为了保证静电监控器的导航定位精度，需要了解静电陀螺的姿态误差特性，建立相应的误差方程.本文采用球面三角形原理推导了导航定位误差与陀螺姿态误差的关系式.仿真结果表明，由初始定向误差引起的经度误差和距离误差的时间特性是周期变化的；由陀螺漂移引起的经度误差和距离误差是随时间发散的.因此，初始定向误差和陀螺漂移的影响不能忽略，必须对其进行估计和补偿 |
