PPS Pseudolites: Utilization of Y-Code on L2 for Transmitting Integrity/Precision Approach Data

Karl Kovach and Arturo Fernandez

Abstract:	In response to positioning and navigation requirements of the Department of Defense (DOD) aviation community, the Navstar Global Positioning System (GPS) Joint Program Office (JPO) continues to define and quantify advanced augmentation systems which: 1) provide integrity warning and 2) support precision approach/landing. Specifically, the GPS JPO is investigating design candidates and assessing various acquisition strategies to meet the needs of a vast and non-homogeneous Precise Positioning Service (PPS) user community. The objective of this paper* is to present a candidate solution: ground-based PPS-capable pseudolites broadcasting Y-code signals on L2 with a slightly modified RTCM SC-104 data stream to support aviation and non-aviation operations with the future GPS Receiver Applications Module (GRAM) as well as to be compatible with existing PPS receiver hardware. This paper describes features required by the pseudolite, deployment alternatives to meet peacetime and battlefield operations, and weapon system integration considerations.
Published in:	Proceedings of the 1995 National Technical Meeting of The Institute of Navigation January 18 - 20, 1995 Disneyland Hotel Anaheim, CA
Pages:	557 - 565
Cite this article:	Kovach, Karl, Fernandez, Arturo, "PPS Pseudolites: Utilization of Y-Code on L2 for Transmitting Integrity/Precision Approach Data," Proceedings of the 1995 National Technical Meeting of The Institute of Navigation, Anaheim, CA, January 1995, pp. 557-565.
Full Paper:	ION Members/Non-Members: 1 Download Credit Sign In