Effects of Antenna Pattern on Global Positioning System Carrier Phase Measurement in Space Station Environment

Shian Hwu, Ba Lu, Jose Hernandez, Robert Panneton, Susan Gomez, and Penny Saunders

Abstract:	To investigate the effects of the different antenna patterns on the GPS carrier phase measurement, two types of commonly used antennas, a microstrip patch antenna and a choke-ring antenna, were investigated and compared. Results obtained from both experiment and computation indicate the GPS performance in a multipath environment is greatly affected by the GPS receiver antenna patterns. The GPS carrier phase measurement errors due to multipath are proportional to the ratio of the left hand circular polarized (LHCP) and right hand circular polarized (RHCP) components of the GPS receiver antenna patterns. In order to reduce the GPS phase measurement errors due to multipath in a multipath environment, the LHCP component of the receiver antenna patterns must be minimized.
Published in:	Proceedings of the 1996 National Technical Meeting of The Institute of Navigation January 22 - 24, 1996 Loews Santa Monica Hotel Santa Monica, CA
Pages:	723 - 728
Cite this article:	Hwu, Shian, Lu, Ba, Hernandez, Jose, Panneton, Robert, Gomez, Susan, Saunders, Penny, "Effects of Antenna Pattern on Global Positioning System Carrier Phase Measurement in Space Station Environment," Proceedings of the 1996 National Technical Meeting of The Institute of Navigation, Santa Monica, CA, January 1996, pp. 723-728.
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