車両軌跡を考慮した整数不定性の信頼性判定による都市部高精度測位の実現

抄録

In this paper, we propose an alternative method to the Ratio-test for determining the reliability of RTK positioning solutions considering the vehicle trajectory. Ratio-test is known to have a problem that it does not work effectively when the initial position of the search for integer indeterminacy is not reasonable due to multipath and other effects. In addition, because the reliability of the RTK positioning solution is judged, there is a problem that the output solution is reduced by the judgment. While, if we focus on the first solution of the LAMBDA method, it is known that there are many places where the location accuracy is sufficient even before the implementation of the Ratio-test. Therefore, in this study, we focus on the use in automobiles and aim to improve the usability of high-precision positioning even in a multipath environment by reviving the results before the Ratio-test by considering the vehicle trajectory.