An Improved Pseudolite Positioning Accuracy Model Based on Centroid Algorithm

摘要

GPS positioning is increasingly used in various fields. However, the cost of GPS satellites is extremely high and the atmosphere affects the output a lot, so it is not suitable for small-scale precise positioning (less than 100km). Aiming at this problem, this paper proposes an enhanced precision model of pseudolite positioning. Based on the idea of pseudolites combined with the centroid algorithm, this model improves the pseudorange accuracy by pseudorange difference, parity correlation coefficient algorithm and phase smooth pseudorange differential measurement. Through the simulation experiment, the improved model can effectively improve the positioning accuracy and reduce the error.