Acta Geodaetica et Cartographica Sinica ›› 2015, Vol. 44 ›› Issue (5): 495-502.doi: 10.11947/j.AGCS.2015.20140154

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Parallel Robust Estimation for Large-scale High-precision GNSS Baseline Vector Network

CUI Yang1, LÜ Zhiping1, ZHANG Youyang2, LI Linyang1   

  1. 1. Institute of Geospatial Information, Information Engineering University, Zhengzhou 450001, China;
    2. Institute of Mechanical and Electrical Engineering, Zhengzhou University of Light Industry, Zhengzhou 450002, China
  • Received:2014-03-28 Revised:2014-07-09 Online:2015-05-20 Published:2015-05-27
  • Supported by:

    The National Natural Science Foundation of China (No.41274015);The National High-tech Research and Development Program of China (863 Program) (No.2013AA122501)

Abstract:

According to the characteristics of large-scale GNSS baseline vector network, the relevant observations robust estimation model which is based on RECO scheme is improved by parallel computing. A feasible process steps are also presented. Using the improved model, a numerical example is given. It is demonstrated that the large-scale GNSS baseline vector related robust parallel estimation not only can inhibit the influence of the outliers to the parameter estimates, but also significantly improve the computational efficiency.

Key words: dependent robust estimation, GNSS, baseline vector network, equivalent weight matrix, parallel estimation

CLC Number: