| 紧耦合导航系统中的GDOP估算方法 | |
| 霍国平 ; 缪玲娟 ; 赵洪松 ; HUO Guo-ping ; MIAO Ling-juan ; ZHAO Hong-song | |
| 2016-03-30 ; 2016-03-30 | |
| 关键词 | 组合导航 卡尔曼滤波 几何精度因子 星座选择 Wu Jiang Zhi The Complete Poems of The Song Dynasty uncollected poems TN96.2 |
| 其他题名 | GDOP Estimation Method in Tightly Coupled Integrated Navigation System |
| 中文摘要 | 提出一种针对低成本GPS/SINS(global positioning system/strap-down inertial navigation system)紧耦合导航系统的快速选星方法,充分利用SINS的输出估算几何精度因子(GDOP),避免大量迭代带来的时间消耗,在卫星失锁后或星座分布发生变化时实现快速选星;并在该方法的基础上设计并实现紧耦合导航系统中量测噪声方差阵的在线修正,提高了组合导航系统滤波估计的精度.试验结果表明,本文方法弥补了传统GPS/SINS紧耦合导航系统中选星时间消耗代价过大、收敛精度较低的问题,并可相应降低设备成本.; A fast constellation selection method was proposed for the low-cost,GPS/SINS(global positioning system/strap-down inertial navigation system) tightly coupled navigation system.To avoid much time-consuming numerical iteration when GPS satellites in the condition of missing lock or constellation geometric distribution changed,geometric dilution of precision(GDOP)estimation carried out taking full advantage of SINS's information.Besides,according to this method,a way of on-line correction to variance covariance matrix of measurement noise has been designed for the tightly coupled integrated navigation system.The result of experiments shows that the proposed method really reduces the number of time-consuming in the procedure of constellation selections,increases accuracy in integrated navigation system,and reduces equipment costs accordingly. |
| 语种 | 中文 ; 中文 |
| 内容类型 | 期刊论文 |
| 源URL | [http://ir.lib.tsinghua.edu.cn/ir/item.do?handle=123456789/146583]  |
| 专题 | 清华大学 |
| 推荐引用方式 GB/T 7714 | 霍国平,缪玲娟,赵洪松,等. 紧耦合导航系统中的GDOP估算方法[J],2016, 2016. |
| APA | 霍国平,缪玲娟,赵洪松,HUO Guo-ping,MIAO Ling-juan,&ZHAO Hong-song.(2016).紧耦合导航系统中的GDOP估算方法.. |
| MLA | 霍国平,et al."紧耦合导航系统中的GDOP估算方法".(2016). |
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