Performance evaluation of filtering algorithms for new orientation system based on single-band gnss equipment

Аuthors

Gerko S. A.

Moscow Aviation Institute (National Research University), 4, Volokolamskoe shosse, Moscow, А-80, GSP-3, 125993, Russia

e-mail: S.Gerko@mail.ru

Abstract

This paper discusses the perspective for application of the filtering methods for new spatial orientation determining of the high-tech objects by means of global navigation satellite systems (GNSS). The peculiarity of this algorithm is that it uses information about the remaining unchanged lengths of the main and closing base-vector measurers in addition to the second difference of pseudorange and pseudophase measurements.
Filter results ship heading angle show that the new algorithm for integer ambiguity resolution, combined with the Kalman filter algorithm, enables high probability of right integer ambiguity resolution using relatively low-cost single-system and single-band equipment meter and a relatively small number of visible satellites. It was found that increased tolerance to the fluctuations of core measurer lengths leads to an increasing in the probability of occurrence of the true as maximum credibility, or in other words, it increases the probability of correct integer ambiguity resolution. The results can be used as algorithmic and practical basis for the implementation of filtering tools onboard moving objects for solving task of orientation by means of GNSS provided computationally efficient software is developed.

Keywords:

GNSS, GPS, base vector, orientation detection, filtering, ambiguity resolution, high-tech objects

References

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