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Modified High-Resolution Correlator Technique for Short-Delayed Multipath Mitigation

Published online by Cambridge University Press:  15 June 2009

Hyoungmin So ,
Ghangho Kim ,
Taikjin Lee ,
Sanghoon Jeon  and
Changdon Kee
Hyoungmin So*
Affiliation:
(Seoul National University)
Ghangho Kim
Affiliation:
(Seoul National University)
Taikjin Lee
Affiliation:
(Seoul National University)
Sanghoon Jeon
Affiliation:
(Seoul National University)
Changdon Kee
Affiliation:
(Seoul National University)
*
(Email: [email protected])
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Abstract

Multipath is one of the main error sources in global navigation satellite system (GNSS) positioning. The high-resolution correlator (HRC) is a multipath mitigation technique well known for its outstanding performance for mid-delayed multipath, but still has a remaining error for the short-delayed multipath. This paper proposes a modified HRC scheme that can remove or reduce the error for short-delayed multipath signals. It estimates the HRC tracking error and augments the conventional HRC with the estimates. The method was implemented with a software receiver and the test results show short-delayed multipath-induced errors were reduced to about one third of those from the conventional HRC.

Keywords

HRCmultipath mitigationGNSS
Type
Research Article
Information
The Journal of Navigation , Volume 62 , Issue 3 , July 2009 , pp. 523 - 542
Copyright
Copyright © The Royal Institute of Navigation 2009

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References

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