| 接收机钟差灰色马尔可夫预测模型研究 |
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| 引用本文： | 滕云龙,师奕兵,郑植.接收机钟差灰色马尔可夫预测模型研究[J].电子科技大学学报(社会科学版),2011(2). |
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| 作者姓名： | 滕云龙 师奕兵 郑植 |
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| 作者单位： | 电子科技大学自动化工程学院;电子科技大学电子科学技术研究院; |
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| 基金项目： | 航空科学基金(20090580013); 中央高校基本科研业务费专项基金(ZYGX2009J092) |
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| 摘 要： | 将灰色理论与马尔可夫链相结合,提出了基于灰色马尔可夫链的接收机钟差预测模型。首先根据灰色理论对钟差序列数据进行拟合以及初步预测,然后以拟合曲线为基础划分状态空间,通过马尔可夫状态转移概率矩阵对初步预测值进行修正。在预测过程中,不断引入最新数据并剔除最旧数据,对模型进行实时更新,以进一步提高预测精度。实例计算验证了该模型的有效性与可行性。
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| 关 键 词： | 灰色理论 马尔可夫链 预测 接收机钟差 卫星导航 |
Research on Grey Markov Model for Predicting Receiver Clock Bias |
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| TENG Yun-long,SHI Yi-bing, ZHENG Zhi.Research on Grey Markov Model for Predicting Receiver Clock Bias[J].Journal of University of Electronic Science and Technology of China(Social Sciences Edition),2011(2). |
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| Authors: | TENG Yun-long SHI Yi-bing ZHENG Zhi |
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| Institution: | TENG Yun-long1,2,SHI Yi-bing1,and ZHENG Zhi2(1.School of Automation Engineering,University of Electronic Science and Technology of China Chengdu 610054,2.Research Institute of Electronic Science and Technology,University of Electronic Science and Technology of China Chengdu 610054) |
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| Abstract: | By combining the advantages of both grey theory and Markov chains,a new grey Markov model for predicting receiver clock bias is presented in this paper.The grey theory is utilized to fit the sequence of receiver clock bias and calculate the initial predicted values.Then the state space is divided according to the fitting values.Finally,the initial predicted values are revised by means of Markov state change probability matrix.Meanwhile,the newest data is gradually added while the oldest one is removed from ... |
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| Keywords: | grey theory Markov chains prediction receiver clock bias satellite navigation |
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