First Experiences with the DGPS Reference Station DIRES

Evelin Engler, Arne Jungstand and Dietmar Klahn

Abstract:	A description of the development state of the high preci- sion DGPS station DIRES is given. Besides for standard DGPS service, the station is intended to transmit regional TEC information that can be used to get improved perfor- mance in high precision real time applications. It is shown that relative slant TEC measurement within an ac- curacy to better than 1 TEC unit on the basis of the used GPS receiver can be reached at. The main problem still to be solved within the limits given by the stations speci- fication is the real-time determination of Ll/L2 inter- channel biases, both in the GPS satellite system an the ground equipment. The paper illustrates the problems in detail. Some ways to solve the problems are outlined.
Published in:	Proceedings of the 1994 National Technical Meeting of The Institute of Navigation January 24 - 26, 1994 Catamaran Resort Hotel San Diego, CA
Pages:	953 - 960
Cite this article:	Engler, Evelin, Jungstand, Arne, Klahn, Dietmar, "First Experiences with the DGPS Reference Station DIRES," Proceedings of the 1994 National Technical Meeting of The Institute of Navigation, San Diego, CA, January 1994, pp. 953-960.
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