搜索

x

留言板

尊敬的读者、作者、审稿人, 关于本刊的投稿、审稿、编辑和出版的任何问题, 您可以本页添加留言。我们将尽快给您答复。谢谢您的支持!

姓名
邮箱
手机号码
标题
留言内容
验证码

一种新的卫星钟差Kalman滤波噪声协方差估计方法

林旭 罗志才

引用本文:
Citation:

一种新的卫星钟差Kalman滤波噪声协方差估计方法

林旭, 罗志才

A new noise covariance matrix estimation method of Kalman filter for satellite clock errors

Lin Xu, Luo Zhi-Cai
PDF
导出引用
  • 采用Kalman滤波方法进行钟差参数计算和预报时, 需确定Kalman滤波噪声协方差矩阵. 针对这一问题, 提出了一种新的卫星钟差Kalman滤波噪声协方差估计方法, 通过建立新息的相关函数序列与未知的噪声参数间的线性函数模型, 采用最小二乘法进行噪声参数估计. 采用精密钟差数据进行钟差参数估计和预报分析, 结果表明, 该方法具有较好的收敛性, 并与顾及随机噪声模型的开窗分类因子自适应抗差估计方法进行对比分析, 验证了新方法的正确性和有效性.
    The satellite clock plays a key role in the global navigation satellite system (GNSS). The accuracy of GNSS and its applications depend on the quality of the satellite clock. Therefore, precisely estimating and predicting the satellite clock is an important issue in the fields of GNSS and its application. As an optimal estimation algorithm, Kalman filter has been used to estimate and predict the satellite clock. However, in a conventional Kalman filter algorithm, the noise covariance matrices of satellite clock need to be predetermined, which restricts its further applications since the noise covariance matrices, especially the process noise covariance matrix, are usually unknown in the real cases. With inappropriate noise covariance matrices, the state estimation of conventional Kalman filter is suboptimal. To cope with this problem, a new noise covariance matrix estimation method of Kalman filter is proposed, and then we apply it to the problem of satellite clock estimation and prediction. Considering the fact that the process noise covariance matrix depends on the unknown noise parameters, the problem of estimating process noise covariance matrix can be solved by estimating the unknown noise parameters. First, the correlation between the Kalman innovations is used to establish a linear relationship with the unknown noise parameters. Then the unknown parameters can be estimated by least-squares estimation. Finally, the satellite clock can be estimated and predicted with the estimated noise parameters. In the new method, no prior information about the noise parameters is needed. Even with some extreme prior noise parameters, the new method can also work very well and has good convergence properties. For comparison, we conduct two experiments using the new method and the adaptively robust Kalman filter with classified adaptive factors based on opening windows separately, both results are consistent with each other very well, which verifies the correctness and effectiveness of this new method.
    • 基金项目: 国家重点基础研究发展计划(批准号: 2013CB733302)、国家自然科学基金(批准号: 41174062, 41131067)、中央高校基本科研业务费专项资金(批准号: 2012214020206)和地球空间环境与大地测量教育部重点实验室开放基金(批准号: 12-02-09)资助的课题.
    • Funds: Project supported by the National Basic Research Program of China (Grant No. 2013CB733302), the National Natural Science Foundation of China (Grant Nos. 41174062, 41131067), the Fundamental Research Funds for the Central Universities, China (Grant No. 2012214020206), and the Open Research Fund Program of the Key Laboratory of Geospace Environment and Geodesy, Ministry of Education, China (Grant No. 12-02-09).
    [1]

    Yang Y, He H, Xu G 2001 J. Geodesy 75 109

    [2]

    Yang Y, Gao W 2005 J. Navigation 58 471

    [3]

    Yang Y, Gao W 2006 J. Geodesy 80 177

    [4]

    Yang Y, Cui X 2008 Survey Rev. 40 260

    [5]

    Hauschild A, Montenbruck O 2009 GPS Solut. 13 173

    [6]

    Liu Y Y, Lian B W, Zhao H W, Liu Y Q 2014 Acta Phys. Sin. 63 228402 (in Chinese) [刘洋洋, 廉保旺, 赵宏伟, 刘亚擎 2014 物理学报 63 228402]

    [7]

    Chen W D, Liu Y L, Zhu Q G, Chen Y 2013 Acta Phys. Sin. 62 170506 (in Chinese) [陈卫东, 刘要龙, 朱奇光, 陈颖 2013 物理学报 62 170506]

    [8]

    Zhao L 2012 Acta Phys. Sin. 61 104301 (in Chinese) [赵龙 2012 物理学报 61 104301]

    [9]

    Shmaliy Y S 2006 IEEE Trans. Ultrason. Ferr. 53 862

    [10]

    Contreras-Gonzalez J, Ibarra-Manzano O, Shmaliy Y S 2013 Measurement 46 476

    [11]

    Huang G W, Yang Y X, Zhang Q 2011 Acta Geodaet. Cartograph. Sin. 40 15 (in Chinese) [黄观文, 杨元喜, 张勤 2011 测绘学报 40 15]

    [12]

    Guo H R, Yang Y X, He H B, Xu T H 2010 Acta Geodaet. Cartograph. Sin. 39 146 (in Chinese) [郭海荣, 杨元喜, 何海波, 徐天河 2010 测绘学报 39 146]

    [13]

    Huang G, Zhang Q 2012 GPS Solut. 16 531

    [14]

    Guo H R 2006 Ph. D. Dissertation (Zhengzhou: Information Engineering University) (in Chinese) [郭海荣 2006 博士学位论文 (郑州:信息工程大学)]

    [15]

    Kwon W H, Kim P S, Han S H 2002 Automatic 38 545

    [16]

    Rajamani M R, Rawlings J B 2009 Automatic 45 142

    [17]

    Odelson B J, Rajamani M R, Rawlings J B 2006 Automatic 42 303

    [18]

    Luo Z C, Lin X, Zhou B Y 2012 Geomat. Inform. Sci. Wuhan Univ. 37 1164 (in Chinese) [罗志才, 林旭, 周波阳 2012 武汉大学学报: 信息科学版 37 1164]

    [19]

    International GNSS Service ftp://igscb.jpl.nasa.gov/[2014.10.20.]

  • [1]

    Yang Y, He H, Xu G 2001 J. Geodesy 75 109

    [2]

    Yang Y, Gao W 2005 J. Navigation 58 471

    [3]

    Yang Y, Gao W 2006 J. Geodesy 80 177

    [4]

    Yang Y, Cui X 2008 Survey Rev. 40 260

    [5]

    Hauschild A, Montenbruck O 2009 GPS Solut. 13 173

    [6]

    Liu Y Y, Lian B W, Zhao H W, Liu Y Q 2014 Acta Phys. Sin. 63 228402 (in Chinese) [刘洋洋, 廉保旺, 赵宏伟, 刘亚擎 2014 物理学报 63 228402]

    [7]

    Chen W D, Liu Y L, Zhu Q G, Chen Y 2013 Acta Phys. Sin. 62 170506 (in Chinese) [陈卫东, 刘要龙, 朱奇光, 陈颖 2013 物理学报 62 170506]

    [8]

    Zhao L 2012 Acta Phys. Sin. 61 104301 (in Chinese) [赵龙 2012 物理学报 61 104301]

    [9]

    Shmaliy Y S 2006 IEEE Trans. Ultrason. Ferr. 53 862

    [10]

    Contreras-Gonzalez J, Ibarra-Manzano O, Shmaliy Y S 2013 Measurement 46 476

    [11]

    Huang G W, Yang Y X, Zhang Q 2011 Acta Geodaet. Cartograph. Sin. 40 15 (in Chinese) [黄观文, 杨元喜, 张勤 2011 测绘学报 40 15]

    [12]

    Guo H R, Yang Y X, He H B, Xu T H 2010 Acta Geodaet. Cartograph. Sin. 39 146 (in Chinese) [郭海荣, 杨元喜, 何海波, 徐天河 2010 测绘学报 39 146]

    [13]

    Huang G, Zhang Q 2012 GPS Solut. 16 531

    [14]

    Guo H R 2006 Ph. D. Dissertation (Zhengzhou: Information Engineering University) (in Chinese) [郭海荣 2006 博士学位论文 (郑州:信息工程大学)]

    [15]

    Kwon W H, Kim P S, Han S H 2002 Automatic 38 545

    [16]

    Rajamani M R, Rawlings J B 2009 Automatic 45 142

    [17]

    Odelson B J, Rajamani M R, Rawlings J B 2006 Automatic 42 303

    [18]

    Luo Z C, Lin X, Zhou B Y 2012 Geomat. Inform. Sci. Wuhan Univ. 37 1164 (in Chinese) [罗志才, 林旭, 周波阳 2012 武汉大学学报: 信息科学版 37 1164]

    [19]

    International GNSS Service ftp://igscb.jpl.nasa.gov/[2014.10.20.]

计量
  • 文章访问数:  5971
  • PDF下载量:  1335
  • 被引次数: 0
出版历程
  • 收稿日期:  2014-10-21
  • 修回日期:  2014-11-27
  • 刊出日期:  2015-04-05

/

返回文章
返回