Range imaging observations of PMSE using the EISCAT VHF radar: Phase calibration and first results
A novel phase calibration technique for use with the multiple-frequency Range IMaging (RIM) technique is introduced based on genetic algorithms. The method is used on data collected with the European Incoherent SCATter (EISCAT) VHF radar during a 2002 experiment with the goal of characterizing the v...
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ftunivnebraskali:oai:digitalcommons.unl.edu:electricalengineeringfacpub-1485 2024-09-30T14:34:20+00:00 Range imaging observations of PMSE using the EISCAT VHF radar: Phase calibration and first results Fernandez, J. R. Palmer, R. D. Chilson, P. B. Haggstrom, I. Rietveld, M. T. 2005-01-01T08:00:00Z application/pdf https://digitalcommons.unl.edu/electricalengineeringfacpub/507 https://digitalcommons.unl.edu/context/electricalengineeringfacpub/article/1485/viewcontent/FernandezAnnalesGeophysicae2005RangeImaging.pdf unknown DigitalCommons@University of Nebraska - Lincoln https://digitalcommons.unl.edu/electricalengineeringfacpub/507 https://digitalcommons.unl.edu/context/electricalengineeringfacpub/article/1485/viewcontent/FernandezAnnalesGeophysicae2005RangeImaging.pdf Department of Electrical and Computer Engineering: Faculty Publications Ionosphere (polar ionosphere) Meteorology and atmosphere dynamics (middle atmosphere dynamics) Radio science (interferometry) Computer Engineering Electrical and Computer Engineering text 2005 ftunivnebraskali 2024-09-02T07:48:23Z A novel phase calibration technique for use with the multiple-frequency Range IMaging (RIM) technique is introduced based on genetic algorithms. The method is used on data collected with the European Incoherent SCATter (EISCAT) VHF radar during a 2002 experiment with the goal of characterizing the vertical structure of Polar Mesosphere Summer Echoes (PMSE) over northern Norway. For typical Doppler measurements, the initial phases of the transmitter and receiver are not required to be the same. The EISCAT receiver systems exploit this fact, allowing a multistatic configuration. However, the RIM method relies on the small phase differences between closely spaced frequencies. As a result, the high-resolution images produced by the RIM method can be significantly degraded if not properly calibrated. Using an enhanced numerical radar simulator, in which data from multiple sampling volumes are simultaneously generated, the proposed calibration method is validated. Subsequently, the method is applied to preliminary data from the EISCAT radar, providing first results of RIM images of PMSE. Data using conventional analysis techniques, and confirmed by RIM, reveal an often-observed double-layer structure with higher stability in the lower layer. Moreover, vertical velocity oscillations exhibit a clear correlation with the apparent motion of the layers shown in the echo power plots. Text EISCAT Northern Norway University of Nebraska-Lincoln: DigitalCommons@UNL Norway |
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Open Polar |
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University of Nebraska-Lincoln: DigitalCommons@UNL |
op_collection_id |
ftunivnebraskali |
language |
unknown |
topic |
Ionosphere (polar ionosphere) Meteorology and atmosphere dynamics (middle atmosphere dynamics) Radio science (interferometry) Computer Engineering Electrical and Computer Engineering |
spellingShingle |
Ionosphere (polar ionosphere) Meteorology and atmosphere dynamics (middle atmosphere dynamics) Radio science (interferometry) Computer Engineering Electrical and Computer Engineering Fernandez, J. R. Palmer, R. D. Chilson, P. B. Haggstrom, I. Rietveld, M. T. Range imaging observations of PMSE using the EISCAT VHF radar: Phase calibration and first results |
topic_facet |
Ionosphere (polar ionosphere) Meteorology and atmosphere dynamics (middle atmosphere dynamics) Radio science (interferometry) Computer Engineering Electrical and Computer Engineering |
description |
A novel phase calibration technique for use with the multiple-frequency Range IMaging (RIM) technique is introduced based on genetic algorithms. The method is used on data collected with the European Incoherent SCATter (EISCAT) VHF radar during a 2002 experiment with the goal of characterizing the vertical structure of Polar Mesosphere Summer Echoes (PMSE) over northern Norway. For typical Doppler measurements, the initial phases of the transmitter and receiver are not required to be the same. The EISCAT receiver systems exploit this fact, allowing a multistatic configuration. However, the RIM method relies on the small phase differences between closely spaced frequencies. As a result, the high-resolution images produced by the RIM method can be significantly degraded if not properly calibrated. Using an enhanced numerical radar simulator, in which data from multiple sampling volumes are simultaneously generated, the proposed calibration method is validated. Subsequently, the method is applied to preliminary data from the EISCAT radar, providing first results of RIM images of PMSE. Data using conventional analysis techniques, and confirmed by RIM, reveal an often-observed double-layer structure with higher stability in the lower layer. Moreover, vertical velocity oscillations exhibit a clear correlation with the apparent motion of the layers shown in the echo power plots. |
format |
Text |
author |
Fernandez, J. R. Palmer, R. D. Chilson, P. B. Haggstrom, I. Rietveld, M. T. |
author_facet |
Fernandez, J. R. Palmer, R. D. Chilson, P. B. Haggstrom, I. Rietveld, M. T. |
author_sort |
Fernandez, J. R. |
title |
Range imaging observations of PMSE using the EISCAT VHF radar: Phase calibration and first results |
title_short |
Range imaging observations of PMSE using the EISCAT VHF radar: Phase calibration and first results |
title_full |
Range imaging observations of PMSE using the EISCAT VHF radar: Phase calibration and first results |
title_fullStr |
Range imaging observations of PMSE using the EISCAT VHF radar: Phase calibration and first results |
title_full_unstemmed |
Range imaging observations of PMSE using the EISCAT VHF radar: Phase calibration and first results |
title_sort |
range imaging observations of pmse using the eiscat vhf radar: phase calibration and first results |
publisher |
DigitalCommons@University of Nebraska - Lincoln |
publishDate |
2005 |
url |
https://digitalcommons.unl.edu/electricalengineeringfacpub/507 https://digitalcommons.unl.edu/context/electricalengineeringfacpub/article/1485/viewcontent/FernandezAnnalesGeophysicae2005RangeImaging.pdf |
geographic |
Norway |
geographic_facet |
Norway |
genre |
EISCAT Northern Norway |
genre_facet |
EISCAT Northern Norway |
op_source |
Department of Electrical and Computer Engineering: Faculty Publications |
op_relation |
https://digitalcommons.unl.edu/electricalengineeringfacpub/507 https://digitalcommons.unl.edu/context/electricalengineeringfacpub/article/1485/viewcontent/FernandezAnnalesGeophysicae2005RangeImaging.pdf |
_version_ |
1811637983134089216 |