| 航位推算系统非线性过程处理新方法研究 |
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| 引用本文： | 王忠,龙宇.航位推算系统非线性过程处理新方法研究[J].电子科技大学学报(社会科学版),2010(3). |
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| 作者姓名： | 王忠 龙宇 |
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| 作者单位： | 四川大学通信工程系; |
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| 基金项目： | 国家自然科学基金(49901013); 中国博士后基金(2005038615); 四川省科技厅应用基础项目(2008JY0043-1) |
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| 摘 要： | 针对航位推算系统中利用扩展Kalman滤波方法解决非线性问题在算法复杂性上的缺陷和精度上的不稳定性,该文从数据预先处理的角度出发,合理规避线性化过程,提出一种充分利用现成Kalman滤波公式的方法,即数据进入滤波器之前就预先进行处理,获得每一组量测值,按照极坐标-笛卡儿坐标的转换方式转为相应的位置信息,再按照标准的Kalman滤波公式构建滤波器,进行状态的最优估计。计算机仿真结果证明该算法的有效性。
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| 关 键 词： | 数据预处理 DR航位推算 扩展Kalman滤波 标准Kalman滤波 |
Study of Nonlinear Process Processing Method for DR Navigation System |
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| WANG Zhong , LONG Yu.Study of Nonlinear Process Processing Method for DR Navigation System[J].Journal of University of Electronic Science and Technology of China(Social Sciences Edition),2010(3). |
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| Authors: | WANG Zhong LONG Yu |
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| Institution: | WANG Zhong , LONG Yu(Department of Communication Engineering,Sichuna University Chengdu 610065) |
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| Abstract: | In dead reckoning system,the limitation of complexity and instability of precision are often encountered for nonlinear problem solved using extended Kalman filtering(EKF).A effective method is provided using fully classical Kalman filtering formula for avoiding linearization process from data pre-processing.The data is processed before filter.Each measuring observation is transformed from polar coordinates into Cartesianism coordinates,then the filtering is done according to standard Kalman filtering in ord... |
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| Keywords: | data pre-processing dead reckoning extended Kalman filtering standard Kalman filtering |
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