Adaptive filtering of continuous GPS results |
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| Authors: | L Ge H-Y Chen S Han C Rizos |
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| Institution: | (1) School of Geomatic Engineering, The University of New South Wales, Sydney, Australia e-mail: l.ge@student.unsw.edu.au; Fax: +61 2 9313 7493, AU |
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| Abstract: | An adaptive finite-duration impulse response filter, based on a least-mean-square algorithm, has been used to mitigate multipath
effects, and to derive tectonic and fault movement signals from continuous global positioning system (CGPS) data. By applying
the filter on both pseudo-range and carrier-phase multipath sequences from CGPS observations on consecutive days, multipath
models have been reliably derived. The standard deviations of residual time series are reduced to about one-quarter on pseudo-range
and to about one-half on carrier phase. The adaptive filter is then used to process baseline solutions from a five-station
array. Tectonic and fault movements have been resolved, which are in good agreement with previous studies involving many more
CGPS stations.
Received: 11 February 2000 / Accepted: 28 June 2000 |
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| Keywords: | : Continuous GPS – Adaptive filter – Multipath effect – Tectonic and fault movements |
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