The Research On The Project Of Pseudolite Augmentation GPS System And On The Multipath Mitigation Technology

Now, GPS technology has been used in many aspects of military and civil domain. On the conditions of high precision as well as the conditions on which the satellites in view can not satisfy the GPS poisoning demand, Pseudolite technology as a solution to the problem has been got the widely international attention. This paper, it introduces the project of Pseudolite-on the ground augmentation GPS, analyzing and researching the structure and the design of Pseudolite signal , making a series of research on the problems which Pseudolites are confronted with in technology with emphasis. As the solution to the Near-Far problem in Pseudolite application, the TDMA signal structure project has been researched. With regard to the multipath effect which is a more complicated problem in Pseudolite application, a project in which Pseudolites is rounding on a flat is brought forward to mitigation the multipath effect this paper, and it have been making some analysis and simulations on this project. At last, it discussed the Pseudolite-inverted positioning system as supplement.