Share Email Print

Proceedings Paper

An assisted GPS support for GPS simulators for embedded mobile positioning
Author(s): Pradeep Kashyap; Abhay Samant; Phani K. Sagiraju; David Akopian
Format Member Price Non-Member Price
PDF $17.00 $21.00

Paper Abstract

During recent years, location technologies have emerged as a research area with many possible applications in wireless communications, surveillance, military equipment, etc. Location Based Services (LBS) such as safety applications have become very popular. For example, US Federal Communication Commission Enhanced 911 (E911) Mandate seeks to provide emergency services personnel with location information that will enable them to dispatch assistance to wireless 911 callers much more quickly. Assisted GPS (A-GPS) is an extension of the conventional Global Positioning System (GPS) which increases start-up sensitivity by as much as 25dB relative to conventional GPS and reduces start times to less than six seconds. In A-GPS assistance data is delivered to the receiver through communication links. This paper addresses the generation of the assistance for GPS simulators for testing A-GPS receivers. The proposed approach is to use IP-based links and location support standards for assistance delivery avoiding network-specific signaling mechanisms so that GPS receiver developers can use this information for testing A-GPS capabilities using basic GPS simulators. The approach is implemented for the GPS simulator developed by the National InstrumentsTM.

Paper Details

Date Published: 28 January 2009
PDF: 12 pages
Proc. SPIE 7256, Multimedia on Mobile Devices 2009, 72560G (28 January 2009); doi: 10.1117/12.806001
Show Author Affiliations
Pradeep Kashyap, The Univ. of Texas at San Antonio (United States)
Abhay Samant, National Instruments (India)
Phani K. Sagiraju, The Univ. of Texas at San Antonio (United States)
David Akopian, The Univ. of Texas at San Antonio (United States)

Published in SPIE Proceedings Vol. 7256:
Multimedia on Mobile Devices 2009
Reiner Creutzburg; David Akopian, Editor(s)

© SPIE. Terms of Use
Back to Top
Sign in to read the full article
Create a free SPIE account to get access to
premium articles and original research
Forgot your username?