Phase calibration of the EISCAT Svalbard Radar interferometer using optical satellite signatures
Abstract. The link between natural ion-line enhancements in radar spectra and auroral activity has been the subject of recent studies but conclusions have been limited by the spatial and temporal resolution previously available. The next challenge is to use shorter sub-second integration times in co...
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ftciteseerx:oai:CiteSeerX.psu:10.1.1.77.2311 2023-05-15T16:04:33+02:00 Phase calibration of the EISCAT Svalbard Radar interferometer using optical satellite signatures J. M. Sullivan N. Ivchenko M. Lockwood T. Grydel E. M. Blixt B. S. Lanchester The Pennsylvania State University CiteSeerX Archives application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.77.2311 http://www.phys.uit.no/~tom/publications/2006/ag-24-2419.pdf en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.77.2311 http://www.phys.uit.no/~tom/publications/2006/ag-24-2419.pdf Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://www.phys.uit.no/~tom/publications/2006/ag-24-2419.pdf Instruments and techniques text ftciteseerx 2016-01-08T19:09:12Z Abstract. The link between natural ion-line enhancements in radar spectra and auroral activity has been the subject of recent studies but conclusions have been limited by the spatial and temporal resolution previously available. The next challenge is to use shorter sub-second integration times in combination with interferometric programmes to resolve spatial structure within the main radar beam, and so relate enhanced filaments to individual auroral rays. This paper presents initial studies of a technique, using optical and spectral satellite signatures, to calibrate the received phase of a signal with the position of the scattering source along the interferometric baseline of the EISCAT Svalbard Radar. It is shown that a consistent relationship can be found only if the satellite passage through the phase fringes is adjusted from the passage predicted by optical tracking. This required adjustment is interpreted as being due to the vector between the theoretical focusing points of the two antennae, i.e. the true radar baseline, differing from the baseline obtained by survey between the antenna foot points. A method to obtain a measurement of the true interferometric baseline using multiple satellite passes is outlined. Text EISCAT Svalbard Unknown Svalbard |
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English |
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Instruments and techniques |
spellingShingle |
Instruments and techniques J. M. Sullivan N. Ivchenko M. Lockwood T. Grydel E. M. Blixt B. S. Lanchester Phase calibration of the EISCAT Svalbard Radar interferometer using optical satellite signatures |
topic_facet |
Instruments and techniques |
description |
Abstract. The link between natural ion-line enhancements in radar spectra and auroral activity has been the subject of recent studies but conclusions have been limited by the spatial and temporal resolution previously available. The next challenge is to use shorter sub-second integration times in combination with interferometric programmes to resolve spatial structure within the main radar beam, and so relate enhanced filaments to individual auroral rays. This paper presents initial studies of a technique, using optical and spectral satellite signatures, to calibrate the received phase of a signal with the position of the scattering source along the interferometric baseline of the EISCAT Svalbard Radar. It is shown that a consistent relationship can be found only if the satellite passage through the phase fringes is adjusted from the passage predicted by optical tracking. This required adjustment is interpreted as being due to the vector between the theoretical focusing points of the two antennae, i.e. the true radar baseline, differing from the baseline obtained by survey between the antenna foot points. A method to obtain a measurement of the true interferometric baseline using multiple satellite passes is outlined. |
author2 |
The Pennsylvania State University CiteSeerX Archives |
format |
Text |
author |
J. M. Sullivan N. Ivchenko M. Lockwood T. Grydel E. M. Blixt B. S. Lanchester |
author_facet |
J. M. Sullivan N. Ivchenko M. Lockwood T. Grydel E. M. Blixt B. S. Lanchester |
author_sort |
J. M. Sullivan |
title |
Phase calibration of the EISCAT Svalbard Radar interferometer using optical satellite signatures |
title_short |
Phase calibration of the EISCAT Svalbard Radar interferometer using optical satellite signatures |
title_full |
Phase calibration of the EISCAT Svalbard Radar interferometer using optical satellite signatures |
title_fullStr |
Phase calibration of the EISCAT Svalbard Radar interferometer using optical satellite signatures |
title_full_unstemmed |
Phase calibration of the EISCAT Svalbard Radar interferometer using optical satellite signatures |
title_sort |
phase calibration of the eiscat svalbard radar interferometer using optical satellite signatures |
url |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.77.2311 http://www.phys.uit.no/~tom/publications/2006/ag-24-2419.pdf |
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Svalbard |
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Svalbard |
genre |
EISCAT Svalbard |
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EISCAT Svalbard |
op_source |
http://www.phys.uit.no/~tom/publications/2006/ag-24-2419.pdf |
op_relation |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.77.2311 http://www.phys.uit.no/~tom/publications/2006/ag-24-2419.pdf |
op_rights |
Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
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1766400142881062912 |