DocumentCode
1857721
Title
Performance degradation in GPS-receivers caused by group delay variations of SAW-filters
Author
Muller, T.
Author_Institution
Daimler-Benz AG, Ulm, Germany
Volume
2
fYear
1998
fDate
7-12 June 1998
Firstpage
495
Abstract
In modern RF-receivers several SAW-filters are used in RF- and IF-stages. The use of SAW-filters is critical with respect to the pseudo-range error after the decorrelation-process. We present a new simulation technique to predict the decorrelation results depending on the group delay characteristics of the filters. This technique allows an improvement of the accuracy of the GPS correlation results and a related optimization of the SAW-filter characteristics.
Keywords
Global Positioning System; UHF filters; VHF filters; delays; errors; radio receivers; surface acoustic wave filters; GPS correlation results; GPS receivers; RF receivers; SAW filters; filter group delay characteristics; group delay variations; optimization; performance degradation; pseudo-range error; simulation technique; Bandwidth; Decorrelation; Degradation; Delay; Filters; Frequency; Global Positioning System; Phase measurement; Satellites; Semiconductor device measurement;
fLanguage
English
Publisher
ieee
Conference_Titel
Microwave Symposium Digest, 1998 IEEE MTT-S International
Conference_Location
Baltimore, MD, USA
ISSN
0149-645X
Print_ISBN
0-7803-4471-5
Type
conf
DOI
10.1109/MWSYM.1998.705040
Filename
705040
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