Research on improving the efficiency of ICCP algorithm by using angle information from initial navigation system
ISBN 978-85-88783-11-9
Authors
1Liu, R.; 2Jiang, N.; 3Zhang, J.
1ZHENGZHOU MAPPING COLLEGE Email: hbqjlr@sina.com
2ZHENGZHOU MAPPING COLLEGE Email: hbqjlr@sina.com
3ZHENGHZOU MAPPING COLLEGE Email: hbqjlr@sina.com
Abstract
Abstract: Due to certain limitations of GPS navigation, inertial navigation, as an independent, convenient and stable means of navigation, is playing an irreplaceable role in a number of navigation and positioning areas with special requirements. However, errors caused by inertial navigation will gradually accumulate over time, so that a larger deviation then appears, which directly affects results of navigation and positioning. Thus, it is critical whether the positioning error can be corrected accurately, quickly and real-timely in practical applications. In this paper, ICCP, the track matching algorithm now widely used is studied, and certain improvements are made in some major aspects of the algorithm on the existing basis. Making full use of the heading angle in real-time inertial navigation of the vehicle, rough-match for positioning points is carried out to reduce the number of iterative calculations in ICCP algorithm so that the efficiency of the algorithm can be improved. Then the algorithm is applied to the real time path match of ground vehicles. Finally, controlled experiments are implemented under the environment of Visual C # + MapX5.0. Experiments show that the efficiency of the enhanced algorithm has been significantly improved.