| 一种具有SA预报能力的GPS KALMAN滤波器 |
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| 引用本文： | 朱海,姬光荣,蔡明华.一种具有SA预报能力的GPS KALMAN滤波器[J].中国海洋大学学报(自然科学版),1996(2). |
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| 作者姓名： | 朱海 姬光荣 蔡明华 |
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| 摘 要： | 对GPS定位中的SA误差作了系统辨识。表明：SA误差可用时变AR（p）模型表述，AR（p）的时变参数可由RLS算法结合F判据建立的AR（p）模型辨识机获得。用该方法获得的模型对SA误差进行预报。在剔除野值后精度在10m之内。还提出了一种将以AR（p）模型表述的SA误差加入GPSKALMAN滤波器的方法，可得到一种具有SA预报能力的GPSKALMAN滤波器。
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| 关 键 词： | GPS系统 系统辨识 选择可用性（SA） 现代时间序列分析 |
A KIND OF GPS KALMAN FILTER WITH SA PREDICTION |
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| Zhu Hai, Ji Guangrong, Cai Minghua.A KIND OF GPS KALMAN FILTER WITH SA PREDICTION[J].Periodical of Ocean University of China,1996(2). |
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| Authors: | Zhu Hai Ji Guangrong Cai Minghua |
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| Institution: | Electrical Department |
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| Abstract: | This paper first establishes a model of GPS SA error with system identification. The result shows that the AR(p) and that model of GPS SA is time-varied.The time-varied parameters of the model can be estimated by a RLS and F judgment estimator. The accuracy of prediction with this model is less than 10m after preprocessing. Then, by integrating this into the GPS KALMAN filter we obtain a kind of GPS KALMAN FILTER with SA prediction. |
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| Keywords: | Global positioning system system identification selective availability time series analysis |
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