Title: FLIGHT TEST RESULTS OF AN INTEGRATED WIDEBAND AIRPORT PSEUDOLITE FOR THE LOCAL AREA AUGMENTATION SYSTEM
Author(s): Chris G. Bartone and Sai Kiran
Published in: NAVIGATION, Journal of the Institute of Navigation, Volume 48, Number 1
Pages: 35 - 48
Cite this article: Bartone, Chris G., Kiran, Sai, "FLIGHT TEST RESULTS OF AN INTEGRATED WIDEBAND AIRPORT PSEUDOLITE FOR THE LOCAL AREA AUGMENTATION SYSTEM", NAVIGATION, Journal of The Institute of Navigation, Vol. 48, No. 1, Spring 2001, pp. 35-48.
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Abstract: This paper details the first real-time integration of a wideband airport pseudolite WBAPL into the Local Area Augmentation System LAAS and illustrates the benefits accrued from this integration. Flight test results obtained using two pulsing formats 111th and a modified RTCA pulsing format , a full GPS satellite vehicle (SV) constellation, and a reduced SV set are presented. While WBAPL bias-value B-value averages were generally higher than those obtained for GPS SVs the standard deviations were comparable, inclusion of the WBAPL still provided an improvement in performance for a reduced GPS SV constellation set. With a healthy constellation 11 SVs, integration of the WBAPL into the differential solution resulted in little difference in the final solution over the last 2.5 to 0.2 nmi of the approaches. However, with a reduced constellation available 45 SVs , inclusion of the WBAPL resulted in a significant improvement in the LAAS system performance in ( ) terms of an increase in availability, decrease in vertical dilution of precision VDOP , and increase in position accuracy over the differential GPS DGPS-only case.