Phase calibration of the EISCAT Svalbard Radar interferometer using optical satellite signatures
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...
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Online Access: | https://centaur.reading.ac.uk/38577/ https://centaur.reading.ac.uk/38577/1/235_Sullivan_angeo-24-2419-2006.pdf https://doi.org/10.5194/angeo-24-2419-2006 |
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ftunivreading:oai:centaur.reading.ac.uk:38577 2024-02-11T10:03:28+01:00 Phase calibration of the EISCAT Svalbard Radar interferometer using optical satellite signatures Sullivan, J. M. Ivchenko, N. Lockwood, Mike Grydeland, T. Blixt, E. M. Lanchester, B. S. 2006 text https://centaur.reading.ac.uk/38577/ https://centaur.reading.ac.uk/38577/1/235_Sullivan_angeo-24-2419-2006.pdf https://doi.org/10.5194/angeo-24-2419-2006 en eng Copernicus Publications https://centaur.reading.ac.uk/38577/1/235_Sullivan_angeo-24-2419-2006.pdf Sullivan, J. M., Ivchenko, N., Lockwood, M. <https://centaur.reading.ac.uk/view/creators/90001127.html> orcid:0000-0002-7397-2172 , Grydeland, T., Blixt, E. M. and Lanchester, B. S. (2006) Phase calibration of the EISCAT Svalbard Radar interferometer using optical satellite signatures. Annales Geophysicae, 24 (9). pp. 2419-2427. ISSN 0992-7689 doi: https://doi.org/10.5194/angeo-24-2419-2006 <https://doi.org/10.5194/angeo-24-2419-2006> cc_by Article PeerReviewed 2006 ftunivreading https://doi.org/10.5194/angeo-24-2419-2006 2024-01-25T23:59:25Z 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. Article in Journal/Newspaper EISCAT Svalbard CentAUR: Central Archive at the University of Reading Svalbard Annales Geophysicae 24 9 2419 2427 |
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Open Polar |
collection |
CentAUR: Central Archive at the University of Reading |
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ftunivreading |
language |
English |
description |
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. |
format |
Article in Journal/Newspaper |
author |
Sullivan, J. M. Ivchenko, N. Lockwood, Mike Grydeland, T. Blixt, E. M. Lanchester, B. S. |
spellingShingle |
Sullivan, J. M. Ivchenko, N. Lockwood, Mike Grydeland, T. Blixt, E. M. Lanchester, B. S. Phase calibration of the EISCAT Svalbard Radar interferometer using optical satellite signatures |
author_facet |
Sullivan, J. M. Ivchenko, N. Lockwood, Mike Grydeland, T. Blixt, E. M. Lanchester, B. S. |
author_sort |
Sullivan, J. M. |
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 |
publisher |
Copernicus Publications |
publishDate |
2006 |
url |
https://centaur.reading.ac.uk/38577/ https://centaur.reading.ac.uk/38577/1/235_Sullivan_angeo-24-2419-2006.pdf https://doi.org/10.5194/angeo-24-2419-2006 |
geographic |
Svalbard |
geographic_facet |
Svalbard |
genre |
EISCAT Svalbard |
genre_facet |
EISCAT Svalbard |
op_relation |
https://centaur.reading.ac.uk/38577/1/235_Sullivan_angeo-24-2419-2006.pdf Sullivan, J. M., Ivchenko, N., Lockwood, M. <https://centaur.reading.ac.uk/view/creators/90001127.html> orcid:0000-0002-7397-2172 , Grydeland, T., Blixt, E. M. and Lanchester, B. S. (2006) Phase calibration of the EISCAT Svalbard Radar interferometer using optical satellite signatures. Annales Geophysicae, 24 (9). pp. 2419-2427. ISSN 0992-7689 doi: https://doi.org/10.5194/angeo-24-2419-2006 <https://doi.org/10.5194/angeo-24-2419-2006> |
op_rights |
cc_by |
op_doi |
https://doi.org/10.5194/angeo-24-2419-2006 |
container_title |
Annales Geophysicae |
container_volume |
24 |
container_issue |
9 |
container_start_page |
2419 |
op_container_end_page |
2427 |
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1790599711226331136 |