电子科技大学学报2011，Vol.40Issue(2)：242-245,4.DOI:10.3969/j.issn.1001-0548.2011.02.017
接收机钟差灰色马尔可夫预测模型研究
Research on Grey Markov Model for Predicting Receiver Clock Bias
摘要
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 the original data sequence. In this way, the presented model can be updated in real time and the forecasting precision can be further improved.Test results are presented to demonstrate the validity and feasibility of the model.关键词
灰色理论/马尔可夫链/预测/接收机钟差/卫星导航Key words
grey theory/ Markov chains/ prediction/ receiver clock bias/ satellite navigation分类
信息技术与安全科学引用本文复制引用
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,2011,40(2):242-245,4.基金项目
航空科学基金(20090580013) （20090580013）
中央高校基本科研业务费专项基金(ZYGX2009J092) （ZYGX2009J092）
