INTRODUCTION TO GNSS-SIM ALGORITHM

摘要

The main aim of presented paper is the description of GNSS-SIM (GNSS-simplification) algorithm that can decrease size of database of GNSS positions, which is required for discrete GNSS-PIM algorithms. General idea of described algorithm is based on neglecting the data that lie on same linear part of train track. The solution of this problem is based on linear statistical model and test of data linearity.