The carrier-multipath observable: a new carrier-phase multipath mitigation technique
Author(s)
Moradi, R
Schuster, W
Feng, S
Jokinen, A
Ochieng, W
Type
Journal Article
Abstract
Modeling and mitigating carrier-phase multi-
path errors continue to be a significant challenge for high-
accuracy positioning using global navigation satellite sys-
tems. The multipath error is dependent on the operational
environment and therefore cannot be mitigated by differ-
encing techniques. The effect of multipath is accentuated
when observables based on linear combinations of mea-
surements from two or more frequencies are formulated.
We develop a new carrier-phase multipath error observable
that isolates the inter-frequency carrier-phase multipath
error for linear combinations of observables, such as wide-
lane (WL). Real-time kinematic positioning results from
varying baseline lengths show that a significant reduction
in between 14 and 47 % in the time to initial ambiguity
resolution are achieved by correcting the WL observable
using the new carrier-phase multipath error observable.
path errors continue to be a significant challenge for high-
accuracy positioning using global navigation satellite sys-
tems. The multipath error is dependent on the operational
environment and therefore cannot be mitigated by differ-
encing techniques. The effect of multipath is accentuated
when observables based on linear combinations of mea-
surements from two or more frequencies are formulated.
We develop a new carrier-phase multipath error observable
that isolates the inter-frequency carrier-phase multipath
error for linear combinations of observables, such as wide-
lane (WL). Real-time kinematic positioning results from
varying baseline lengths show that a significant reduction
in between 14 and 47 % in the time to initial ambiguity
resolution are achieved by correcting the WL observable
using the new carrier-phase multipath error observable.
Date Issued
2014-01-22
Date Acceptance
2014-01-11
Citation
GPS Solutions, 2014, 19 (1), pp.73-82
ISSN
1080-5370
Publisher
Springer Verlag
Start Page
73
End Page
82
Journal / Book Title
GPS Solutions
Volume
19
Issue
1
Copyright Statement
© Springer-Verlag Berlin Heidelberg 2014. The final publication is available at Springer via https://link.springer.com/article/10.1007%2Fs10291-014-0366-8
Sponsor
Engineering & Physical Science Research Council (EPSRC)
Identifier
http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000348281000007&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=1ba7043ffcc86c417c072aa74d649202
Grant Number
EP/G01969X/1
Subjects
Science & Technology
Technology
Remote Sensing
Linear combination
Inter-frequency multipath
Wide lane
Carrier-phase multipath
Publication Status
Published