| 组合导航系统离线信息融合算法 |
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| 引用本文： | 邱吉冰,蒋志翔.组合导航系统离线信息融合算法[J].计算机工程与设计,2008,29(9):2346-2349. |
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| 作者姓名： | 邱吉冰 蒋志翔 |
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| 作者单位： | 中国航天科工集团第二研究院706所研发中心,北京,100854 |
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| 摘 要： | 获得高精度的载体实际飞行轨迹,是组合导航系统性能评测的重要手段.从组合导航系统研究出发,针对惯性导航系统、姿态(非姿态)型GPS和大气数据计算机多传感器组合导航方式,实现多传感器信息离线融合算法.同类型导航传感器数据采用加权最小二乘算法,并利用开环卡尔曼滤波实现组合导航的信息融合,在此基础上再进行最优固定区间平滑滤波.仿真实验结果表明,经过上述3步信息融合之后,得到的导航结果精度不仅高于任一个传感器精度,而且高于单独采用卡尔曼滤波的导航参数精度.
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| 关 键 词： | 组合导航 全球定位系统 卡尔曼滤波 固定区间平滑 最小二乘 |
| 文章编号： | 1000-7024(2008)09-2346-04 |
| 修稿时间： | 2008年1月11日 |
Algorithm of post-information fusion on integrated navigation system |
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| QIU Ji-bing,JIANG Zhi-xiang.Algorithm of post-information fusion on integrated navigation system[J].Computer Engineering and Design,2008,29(9):2346-2349. |
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| Authors: | QIU Ji-bing JIANG Zhi-xiang |
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| Affiliation: | QIU Ji-bing,JIANG Zhi-xiang(R&D Center of 706 Institute,Second Academy of China Aerospace Science , Industry Corporation,Beijing 100854,China) |
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| Abstract: | In order to obtain the high accurate actual flight path of carrier,under the research of integrated navigation system,in view of multi-sensor integrated navigation system of inertial navigation system,attitude(non-attitude) GPS and air data computer,the algorithm of post-information fusion on multi-sensor is realized.The weighting least-square technique is used for similar navigation sensor data,and on the foundation of open-loop Kalman filtering,the best fixed-interval optimal smoothing filtering is used f... |
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| Keywords: | integrated navigation global position system Kalman filtering fixed-interval optimal smoothing least square |
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