Simulation Study on Locata / GPS Integrated Kinematic Positioning

It is difficult to maintain a stable positioning accuracy for GPS if the number of available satellites is insufficient. Positioning can be accomplished by Locata based on terrestrial networks. The Locata / GPS approach is a good solution. An integrated kinematic positioning algorithm for Locata / GPS was presented. Based on simulation data, an experiment on positioning accuracy and convergence time of Locata, GPS and Locata / GPS was conducted. The trial results show that DOP value and positioning accuracy of Locata / GPS are better and the convergence time is substantially reduced. If available satellites are insufficient, the improvement of positioning accuracy of Locata / GPS is obvious.