| GPS/伪卫星组合选址优化的一种思路 |
| |
| 引用本文： | 李继尚,刘常全,郭颖斐,王少宁,倪维洋.GPS/伪卫星组合选址优化的一种思路[J].全球定位系统,2012,37(4):19-21,26. |
| |
| 作者姓名： | 李继尚 刘常全 郭颖斐 王少宁 倪维洋 |
| |
| 作者单位： | 中国矿业大学环境与测绘学院,江苏徐州,221116 |
| |
| 基金项目： | 中国矿业大学大学生实践创新训练计划项目 |
| |
| 摘 要： | 针对露天矿区GPS几何图形条件与可见卫星个数易受地形影响、定位不佳的情况,利用GPS/伪卫星组合定位技术提高定位精度。阐述了GPS定位精度因子的概念,并进行了相关公式的推导。以某矿区接收的GPS信息为实验数据,利用Matlab仿真定量分析出加入伪卫星后对定位精度的影响;并提出以观测时间、高度角、方位角为自变量的三维选址优化模型,为伪卫星选址优化提供了直观的表达方法。
|
| 关 键 词： | GPS/伪卫星组合技术 定位精度因子 选址优化 |
An Optimization Model in Selecting Location of GPS/Pseudolites |
| |
| LI Jishang,LIU Changquan,GUO Yingfei,WANG Shaoning,NI Weiyang.An Optimization Model in Selecting Location of GPS/Pseudolites[J].Gnss World of China,2012,37(4):19-21,26. |
| |
| Authors: | LI Jishang LIU Changquan GUO Yingfei WANG Shaoning NI Weiyang |
| |
| Institution: | (School of Environment Science and Spatial Information,University of Mining and Technology,Xuzhou Jiangsu 221116,China) |
| |
| Abstract: | In order to improve positioning geometry strength and to increase the number of visible GPS satellites,Integration of GPS and pseudolites was used to improve the precision of positioning.The concept dilution of precision（DOP） was explained,and fundamental theories and corresponding formulas were illustrated.Based on the information of one mining area,the pseudolite’s effect on improving the precision of positioning is analyzed by Matlab,and build a three-dimensional model in term of independent variable of azimuth angel,elevation angel and observed epochs,in order to improve the efficiency of pseudolites locations. |
| |
| Keywords: | Integration of GPS/pseudolites dilution of precison location optimization |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
