Abstract
This paper focuses on location accuracy enhancement and performance comparison for global navigation satellite systems (GNSS) based positioning in light multipath propagation environments. The well-known linear iterative least-squares (LS) estimator algorithm performs the location of a ground (mobile) terminal. A sliding window and subspace decomposition (SD) based approach is proposed to generate coefficients for weighting the pseudorange measurements between the ground receiver and a set of satellites. Simulation results with real pseudorange measurement data (recorded at two different scenarios) demonstrate that the proposed SD-based LS algorithm significantly outperforms the existing LS algorithm, with root mean square error (RMSE) reduced by more than 0.7m.
Original language | English |
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Title of host publication | 2012 International Symposium on Communications and Information Technologies (ISCIT) |
Subtitle of host publication | proceedings |
Place of Publication | Piscataway, NJ |
Publisher | Institute of Electrical and Electronics Engineers (IEEE) |
Pages | 1045-1050 |
Number of pages | 6 |
ISBN (Electronic) | 9781467311571, 9781467311557 |
ISBN (Print) | 9781467311564 |
DOIs | |
Publication status | Published - 2012 |
Externally published | Yes |
Event | 2012 International Symposium on Communications and Information Technologies, ISCIT 2012 - Gold Coast, QLD, Australia Duration: 2 Oct 2012 → 5 Oct 2012 |
Other
Other | 2012 International Symposium on Communications and Information Technologies, ISCIT 2012 |
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Country/Territory | Australia |
City | Gold Coast, QLD |
Period | 2/10/12 → 5/10/12 |
Keywords
- GNSS
- satellite positioning
- subspace decomposition
- least-squares