| 飞机载体的杆臂效应对GPS测速精度的影响 |
| |
| 引用本文： | 黄雪妮,杨武.飞机载体的杆臂效应对GPS测速精度的影响[J].导航定位于授时,2017,4(4):57-60. |
| |
| 作者姓名： | 黄雪妮 杨武 |
| |
| 作者单位： | 1. 中国飞行试验研究院,西安,710089;2. 中航工业第一飞机设计研究院,西安,710089 |
| |
| 摘 要： | 杆臂效应是由于测量体的安装位置与运动载体质心不重合而引起的。从理论上分析了杆臂效应产生的原理,推导得出杆臂效应引起的速度误差公式。通过仿真试验和飞行试验数据分析了飞机载体不同运动状态下,杆臂效应对GPS速度测量精度的影响。通过对杆臂误差补偿后,GPS测速精度得到很大提高。在惯导系统飞行试验中引入该方法,可以科学合理地给出系统试飞评定结果。
|
| 关 键 词： | 杆臂效应 GPS测速精度 误差补偿 |
The Aircraft's Lever Arm Effect Impact on
the Accuracy of GPS Speed |
| |
| HUANG Xue-ni and YANG Wu.The Aircraft's Lever Arm Effect Impact on
the Accuracy of GPS Speed[J].Navigation Positioning & Timing,2017,4(4):57-60. |
| |
| Authors: | HUANG Xue-ni and YANG Wu |
| |
| Institution: | China Flight Test Establishment, Xi''an 710089, China and AVIC the First Aircraft Institute, Xi''an 710089, China |
| |
| Abstract: | Lever-arm effect is caused by the noncoincide of the measuring body''s mounting position and the center of mass of the moving body. This paper theoretically analyzes the principle of the lever arm effect, deduced speed error formula produced by lever arm effects. The simulation results and the flight test data are both analyzed how the impact of the lever arm effect on the measurement accuracy of GPS speed, while the aircraft on different movements. Through error compensation, GPS speed measurement accuracy is greatly improved. This compensation method can be used to inertial navigation systems and related subjects'' flight test |
| |
| Keywords: | Lever-arm effect The accuracy of GPS speed Error compensation |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《导航定位于授时》浏览原始摘要信息 |
| 点击此处可从《导航定位于授时》下载免费的PDF全文 |
