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GDOP’s Influence on Observable Degree of Multi-Antenna GPS/SINS Integrated Attitude Measuring System

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DOI: 10.4236/wjet.2015.33C054    3,166 Downloads   3,478 Views   Citations

ABSTRACT

GDOP’s influence on observable degree is studied by analyzing a multi-antenna GPS/SINS attitude measuring system. Firstly, the mathematical model of the attitude measuring system, whose observations are single-differences, is provided; Secondly, it is proved that the model can be studied by PWCS theory, and GDOP’s influence on observable degree is explained intuitively. Then, the variance of observable degree is studied by simulation while GDOP is different, and the result is analysed. Simulation results show that, the observable degree becomes worse with the increasing GDOP value. Therefore, while designing such kind of Kalman filter, the influence to observable degree which made by GDOP should be considered adequately.

Conflicts of Interest

The authors declare no conflicts of interest.

Cite this paper

He, H. , Zheng, Y. , Yang, D. , Zhang, J. and Wang, S. (2015) GDOP’s Influence on Observable Degree of Multi-Antenna GPS/SINS Integrated Attitude Measuring System. World Journal of Engineering and Technology, 3, 354-359. doi: 10.4236/wjet.2015.33C054.

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