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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... Full description

Journal Title: Annales Geophysicae 2006, Vol.24 (9), p.2419-2427
Main Author: SULLIVAN, J. M
Other Authors: IVCHENKO, N , LOCKWOOD, M , GRYDELAND, T , BLIXT, E. M , LANCHESTER, B. S
Format: Electronic Article Electronic Article
Language: English
Subjects:
Rom
Publisher: Katlenburg-Lindau: European Geophysical Society
ID: ISSN: 0992-7689
Zum Text:
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title: Phase calibration of the EISCAT Svalbard Radar interferometer using optical satellite signatures
format: Article
creator:
  • SULLIVAN, J. M
  • IVCHENKO, N
  • LOCKWOOD, M
  • GRYDELAND, T
  • BLIXT, E. M
  • LANCHESTER, B. S
subjects:
  • akustikk
  • Astronomi, astrofysik och kosmologi
  • Astronomy, Astrophysics and Cosmology
  • Atmosphere
  • auroral ionosphere
  • Cosmic physics
  • Earth Sciences
  • Earth, ocean, space
  • echoes
  • Elektromagnetisme
  • Exact sciences and technology
  • External geophysics
  • field-aligned currents
  • Fysik
  • Fysikk
  • Geophysics
  • instabilities
  • instruments
  • instruments and techniques
  • interferometry
  • ionosphere
  • Matematikk og Naturvitenskap
  • Natural Sciences
  • Naturvetenskap
  • Ocean
  • Ocean, Atmosphere
  • og plasmafysikk
  • Optical instruments
  • optikk
  • Physical Sciences
  • Physics
  • Physics of the high neutral atmosphere
  • Physics of the ionosphere
  • Physics of the magnetosphere
  • Radar systems
  • radio science
  • Rom
  • Science
  • Sciences of the Universe
  • spectra
  • system
  • techniques
ispartof: Annales Geophysicae, 2006, Vol.24 (9), p.2419-2427
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.
language: eng
source:
identifier: ISSN: 0992-7689
fulltext: no_fulltext
issn:
  • 0992-7689
  • 1432-0576
  • 1432-0576
url: Link


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titlePhase calibration of the EISCAT Svalbard Radar interferometer using optical satellite signatures
creatorSULLIVAN, J. M ; IVCHENKO, N ; LOCKWOOD, M ; GRYDELAND, T ; BLIXT, E. M ; LANCHESTER, B. S
creatorcontribSULLIVAN, J. M ; IVCHENKO, N ; LOCKWOOD, M ; GRYDELAND, T ; BLIXT, E. M ; LANCHESTER, B. S
descriptionThe 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.
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languageeng
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subjectakustikk ; Astronomi, astrofysik och kosmologi ; Astronomy, Astrophysics and Cosmology ; Atmosphere ; auroral ionosphere ; Cosmic physics ; Earth Sciences ; Earth, ocean, space ; echoes ; Elektromagnetisme ; Exact sciences and technology ; External geophysics ; field-aligned currents ; Fysik ; Fysikk ; Geophysics ; instabilities ; instruments ; instruments and techniques ; interferometry ; ionosphere ; Matematikk og Naturvitenskap ; Natural Sciences ; Naturvetenskap ; Ocean ; Ocean, Atmosphere ; og plasmafysikk ; Optical instruments ; optikk ; Physical Sciences ; Physics ; Physics of the high neutral atmosphere ; Physics of the ionosphere ; Physics of the magnetosphere ; Radar systems ; radio science ; Rom ; Science ; Sciences of the Universe ; spectra ; system ; techniques
ispartofAnnales Geophysicae, 2006, Vol.24 (9), p.2419-2427
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descriptionThe 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.
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titlePhase calibration of the EISCAT Svalbard Radar interferometer using optical satellite signatures
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abstractThe 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.
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doi10.5194/angeo-24-2419-2006
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