Ground-multi path mitigation via polarization steering of GPS signal
Multipath (MP) is the dominant error source in Global Positioning System (GPS) code-based position solutions requiring high accuracy. A technique is introduced here to mitigate error due to ground-reflected MP signals. The technique uses two orthogonal dipoles to capture the direct GPS signal and th...
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| Veröffentlicht in: | IEEE transactions on aerospace and electronic systems 2004-04, Vol.40 (2), p.536-552 |
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| creator | Aloi, D.N. Van Graas, F. |
| description | Multipath (MP) is the dominant error source in Global Positioning System (GPS) code-based position solutions requiring high accuracy. A technique is introduced here to mitigate error due to ground-reflected MP signals. The technique uses two orthogonal dipoles to capture the direct GPS signal and the ground-reflected GPS signal. Adjusting the amplitude and phase of the received voltage between the two dipoles can reduce the impact of MP error. Theoretical derivations of this technique are performed for a GPS signal upon reflection from dry soil, seawater, and fresh water. The theoretical results are verified with a real world experiment on the aforementioned surfaces. GPS pseudo-range (PR) and carrier-to-noise ratio (C/No) measurements for specific satellites are used to verify the predicted theoretical results. |
| doi_str_mv | 10.1109/TAES.2004.1310003 |
| format | Article |
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GPS pseudo-range (PR) and carrier-to-noise ratio (C/No) measurements for specific satellites are used to verify the predicted theoretical results.</description><identifier>ISSN: 0018-9251</identifier><identifier>EISSN: 1557-9603</identifier><identifier>DOI: 10.1109/TAES.2004.1310003</identifier><identifier>CODEN: IEARAX</identifier><language>eng</language><publisher>New York: IEEE</publisher><subject>Dipoles ; Electric potential ; Errors ; Geographic information systems ; Global Positioning System ; Multiaccess communication ; Polarization ; Receiving antennas ; Reflection ; Reflector antennas ; Satellite navigation systems ; Satellites ; Sea water ; Signal processing ; Soil measurements ; Voltage</subject><ispartof>IEEE transactions on aerospace and electronic systems, 2004-04, Vol.40 (2), p.536-552</ispartof><rights>Copyright The Institute of Electrical and Electronics Engineers, Inc. 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A technique is introduced here to mitigate error due to ground-reflected MP signals. The technique uses two orthogonal dipoles to capture the direct GPS signal and the ground-reflected GPS signal. Adjusting the amplitude and phase of the received voltage between the two dipoles can reduce the impact of MP error. Theoretical derivations of this technique are performed for a GPS signal upon reflection from dry soil, seawater, and fresh water. The theoretical results are verified with a real world experiment on the aforementioned surfaces. GPS pseudo-range (PR) and carrier-to-noise ratio (C/No) measurements for specific satellites are used to verify the predicted theoretical results.</description><subject>Dipoles</subject><subject>Electric potential</subject><subject>Errors</subject><subject>Geographic information systems</subject><subject>Global Positioning System</subject><subject>Multiaccess communication</subject><subject>Polarization</subject><subject>Receiving antennas</subject><subject>Reflection</subject><subject>Reflector antennas</subject><subject>Satellite navigation systems</subject><subject>Satellites</subject><subject>Sea water</subject><subject>Signal processing</subject><subject>Soil measurements</subject><subject>Voltage</subject><issn>0018-9251</issn><issn>1557-9603</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2004</creationdate><recordtype>article</recordtype><sourceid>RIE</sourceid><recordid>eNqN0UtLAzEQAOAgCtbqDxAviwc9bZ1JsmlyLG2tQkGh9bwkbVJT9uVmV9Bfb6A9eRBPwwwf82AIuUYYIYJ6WE_mqxEF4CNkCADshAwwy8apEsBOyQAAZapohufkIoR9TLnkbEBmi7buq21a9kXnk0Z370npO7_Tna-r5NPrpKkL3frvQyF01ra-2iW1SxavqyT4XaWLS3LmdBHs1TEOydvjfD19Spcvi-fpZJl65EhTZ4w06GzmUCPVIAQDLTk3xnE0VgmJdhz3AhyLjTaacSOsMhT1loLIHBuS-0Pfpq0_ehu6vPRhY4tCV7buQy6VoEhB0ijv_pRUKg4c1D8ggyzuFOHtL7iv-zYeH8dKlimgDCO6OSBvrc2b1pe6_cqPH2E_AYB9qQ</recordid><startdate>20040401</startdate><enddate>20040401</enddate><creator>Aloi, D.N.</creator><creator>Van Graas, F.</creator><general>IEEE</general><general>The Institute of Electrical and Electronics Engineers, Inc. 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| ispartof | IEEE transactions on aerospace and electronic systems, 2004-04, Vol.40 (2), p.536-552 |
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| source | IEEE Electronic Library (IEL) |
| subjects | Dipoles Electric potential Errors Geographic information systems Global Positioning System Multiaccess communication Polarization Receiving antennas Reflection Reflector antennas Satellite navigation systems Satellites Sea water Signal processing Soil measurements Voltage |
| title | Ground-multi path mitigation via polarization steering of GPS signal |
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