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Zhou, W.D., Cai, J.N., Sun, L., et al. (2013) Observability Analysis of GPS/SINS Ultra-Tightly Coupled System. Journal of Beijing University of Aeronautics and Astronautics, 39, 1157-1162.

has been cited by the following article:

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

  AUTHORS: Hao He, Yuhang Zheng, Dongfang Yang, Jinsheng Zhang, Shicheng Wang

  KEYWORDS: Attitude Measuring, Observable Degree, SVD, GDOP

  JOURNAL NAME: World Journal of Engineering and Technology, Vol.3 No.3C, October 24, 2015

  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.