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.