Title :
Pseudolite-aided GPS: a comparison
Author :
Stein, Barry A. ; Tsang, Wai L.
Author_Institution :
Sci. Applications Int. Corp., McLean, VA, USA
fDate :
29 Nov-2 Dec 1988
Abstract :
The author suggests that there is strong reason to believe that variations in GPS (Global Positioning System) performance as a function of location and time can be mitigated by augmenting the GPS system with pseudolites in pure geodetic, differential, and hybrid forms. Analyses have been performed to calculate the relative merits of these augmentations. The area of detail studied was the southwestern US to ascertain the effects on a typical test range. Simulation results show that the navigation solution accuracy of either a stationary or mobile user improves by adding pseudolites with a pure geodetic capability, and improves dramatically with a differential capability. The results demonstrate the time dependence of the navigation solution at the user location
Keywords :
radionavigation; differential capability; hybrid forms; mobile user; navigation solution accuracy; pseudolite-aided GPS; pure geodetic capability; stationary user; Analytical models; Application software; Degradation; Extraterrestrial measurements; Global Positioning System; Hardware; Instruments; Satellite constellations; Satellite navigation systems; Software testing;
Conference_Titel :
Position Location and Navigation Symposium, 1988. Record. Navigation into the 21st Century. IEEE PLANS '88., IEEE
Conference_Location :
Orlando, FL
DOI :
10.1109/PLANS.1988.195502
