Real-Time Heading Determination Using an Integrated GPS-Dead Reckoning System

M. Elizabeth Cannon, John B. Schleppe, James F. McLellan, Tom E. Ollevier

Abstract:	Detemmdon of vehicle heading in ml-time using two GPSreceiversmountedonthevehicleroofisinve&@ted using Magnavox GPS l3@neP. The main error sources liiingthea&ievableauxacy~carrierphasenoiseand multipath. A series of controlled low kinematic tests were ptxformedtoassessthemagnitu&oftbeseerrasandresults are given. A third compamt of maintainmg accumte heading is the de&m&&o of & phase ambiguities ‘oa~fly’.IaorQertoassistintheestimati~ofinteger ambiguities, the GF’S receivers 8ce integrated to several dead-&o&g senscns including a compass, rate gyros, odometer and altimeter. Using the wximate heading from the dead-doning system, the mteger tzanier phase ambiguities can ba edmated virtually instantaueously in real-time. Tests demonstr&ng the achievable accumcy of the intern system we desaiibed and results are dis- cussed.
Published in:	Proceedings of the 5th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GPS 1992) September 16 - 18, 1992 Albuquerque, NM
Pages:	767 - 773
Cite this article:	Cannon, M. Elizabeth, Schleppe, John B., McLellan, James F., Ollevier, Tom E., "Real-Time Heading Determination Using an Integrated GPS-Dead Reckoning System," Proceedings of the 5th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GPS 1992), Albuquerque, NM, September 1992, pp. 767-773.
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