| 一种惯性辅助卫星导航系统及其完好性检测方法 |
| |
| 引用本文： | 刘海颖,冯成涛,王惠南.一种惯性辅助卫星导航系统及其完好性检测方法[J].宇航学报,2011,32(4). |
| |
| 作者姓名： | 刘海颖 冯成涛 王惠南 |
| |
| 作者单位： | 1. 南京航空航天大学高新技术研究院,南京,210016
2. 南京航空航天大学航天学院,南京,210016 |
| |
| 基金项目： | 航空科学基金项目，南京航空航天大学基础科研业务费专项项目 |
| |
| 摘 要： | 针对传统的卫星导航/捷联惯导(GNSS/SINS)紧耦合组合系统中SINS测量影响所有的观测量,以及SINS故障不能被隔离的缺点,给出了一种新的惯性辅助卫星导航紧耦合组合结构及其完好性检测方法.设计了紧耦合系统结构和卡尔曼滤波器,将SINS测量转换为虚拟伪距,作为GNSS伪距测量的扩展,并设计了基于滤波新息的残差检验法(RCTM)和自主完好性检测外推法(AIME)来进行完好性检测.该紧耦合方法可以通过虚拟卫星的选择降低几何精度因子,在提高导航精度的同时便于完好性检测.仿真结果表明惯性辅助卫星导航新方法可以有效地提高导航精度,RCTM法对于阶跃故障和快变的斜坡故障检测是非常有效的,而AIME法对于慢变的斜坡故障检测具有更好的性能.
|
| 关 键 词： | 卫星导航 惯性导航 完好性检测 残差检验法 自主完好性检测外推法 |
Method of Inertial Aided Satellite Navigation and Its Integrity Monitoring |
| |
| LIU Hai-ying,FENG Cheng-tao,WANG Hui-nan.Method of Inertial Aided Satellite Navigation and Its Integrity Monitoring[J].Journal of Astronautics,2011,32(4). |
| |
| Authors: | LIU Hai-ying FENG Cheng-tao WANG Hui-nan |
| |
| Institution: | LIU Hai-ying1,FENG Cheng-tao1,WANG Hui-nan2(1.Academy of Frontier Science,Nanjing University of Aeronautics and Astronautics,Nanjing 210016,China,2.Academy of Astronautics,China) |
| |
| Abstract: | A new tightly coupled integrated system of Global Navigation Satellite System(GNSS) aided by Strapdown Inertial Navigation System(SINS) and its integrity monitoring method is proposed in this paper for avoiding the disadvantage of conventional method in which all the observations are influenced by SINS and the fault can not be isolated.The tightly coupled integrated architecture and the Kalman filer are designed,in which the SINS measurements are conversed to virtual pseudorange and used as an extend to GNS... |
| |
| Keywords: | Satellite navigation Inertial navigation Integrity monitoring Residual Chi-square test method AIME |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
