Abstract:

In allusion to the accuracy problem of the fringes positioning where GPS satellites are blocked, this paper uses the positioning technology of DTV-GPS to obtain the location of the target, firstly. Then, this paper assumes a maneuver target model of U-shaped mountain road, and the Kalman filter algorithm is used to track positioning target, finally, the Monte-Carlo method is adopted to carry out the simulate research. The simulation results show that the estimate trajectory is close to the real trajectory, and the error about 10 m, in line with the standards of the positioning accuracy, also the model is in line with the actual scene. The algorithm is to use and stable and has rapid convergence rate and high positioning accuracy to improve the accuracy of the mobile target tracking and real-time system.

Key words: global positioning system, digital TV,Kalman filter, kinematic model, positioning accuracy