| 基于U-D分解滤波的GPS动态用户导航算法研究 |
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| 引用本文： | 何秀凤,袁信.基于U-D分解滤波的GPS动态用户导航算法研究[J].南京航空航天大学学报,1993(Z1). |
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| 作者姓名： | 何秀凤 袁信 |
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| 作者单位： | 南京航空航天大学自动控制系
(何秀凤)，南京航空航天大学自动控制系(袁信) |
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| 摘 要： | 本文将数值稳定性好、计算量小的序列U-D分解滤波算法应用到状态方程为线性、观测方程为非线性的GPS动态用户导航系统中。文中建立了高动态用户数学模型,推导了以伪距为观测量的系统测量方程。在给定飞机航迹的情况下,对系统进行了数字仿真。仿真结果表明,U-D分解滤波算法能更有效地适合动态用户GPS导航系统。
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| 关 键 词： | 卡尔曼滤波 滤波算法 导航 U-D分解滤波 全球定位系统 |
Research on GPS Navigation Algorithm of Dynamic User Based on U-D Covariance Factorization Filter |
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| He Xiufeng Yuan Xin.Research on GPS Navigation Algorithm of Dynamic User Based on U-D Covariance Factorization Filter[J].Journal of Nanjing University of Aeronautics & Astronautics,1993(Z1). |
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| Authors: | He Xiufeng Yuan Xin |
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| Institution: | Department of Automatic control |
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| Abstract: | In this paper, the U-D covariance factorization filter, which has excellent numerical characteristics and needs less computation is used, first, the model of dynamic user is established. Then, the pseuclorange observation equation is deduced. When the airplane trace is given, digital simulation analysis of th system is clone. The results indicate that the proposed method in this paper is efficient. |
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| Keywords: | Kalman filtering fisltenrng algorithm navigation U-D covariance factorization filtering GPS |
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