Interferometric and high time-resolution observations of naturally enhanced ion-acoustic echoes at the EISCAT Svalbard radar: Software radar and incoherent scattering
We know that the visible Aurora Borealis is structured on many different scales, down to a few tens of metres. By using the EISCAT radars on Svalbard as an interferometer, we have found structures in the radio echoes from the auroral ionosphere on a scale approaching that of the visible aurora, and...
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Universitetet i Tromsø
2003
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Online Access: | https://hdl.handle.net/10037/282 |
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ftunivtroemsoe:oai:munin.uit.no:10037/282 2024-06-02T08:05:58+00:00 Interferometric and high time-resolution observations of naturally enhanced ion-acoustic echoes at the EISCAT Svalbard radar: Software radar and incoherent scattering Grydeland, Tom 2003-06-24 5154694 bytes application/pdf https://hdl.handle.net/10037/282 eng eng Universitetet i Tromsø University of Tromsø https://hdl.handle.net/10037/282 URN:NBN:no-uit_munin_131 openAccess Copyright 2003 The Author(s) VDP::Matematikk og Naturvitenskap: 400::Informasjons- og kommunikasjonsvitenskap: 420::Simulering visualisering signalbehandling bildeanalyse: 429 VDP::Matematikk og Naturvitenskap: 400::Fysikk: 430::Elektronikk: 435 VDP::Matematikk og Naturvitenskap: 400::Fysikk: 430::Rom- og plasmafysikk: 437 Doctoral thesis Doktorgradsavhandling 2003 ftunivtroemsoe 2024-05-07T08:40:37Z We know that the visible Aurora Borealis is structured on many different scales, down to a few tens of metres. By using the EISCAT radars on Svalbard as an interferometer, we have found structures in the radio echoes from the auroral ionosphere on a scale approaching that of the visible aurora, and simultaneously with it, but at far greater ranges. In this thesis we discuss how these radar observations were made, what they imply for theoretical explanations, as well as a new framework for the design and implementation of software-defined radar and other radio science instrumentation, in particular the signal processing which made these observations possible. Doctoral or Postdoctoral Thesis EISCAT Svalbard University of Tromsø: Munin Open Research Archive Svalbard |
institution |
Open Polar |
collection |
University of Tromsø: Munin Open Research Archive |
op_collection_id |
ftunivtroemsoe |
language |
English |
topic |
VDP::Matematikk og Naturvitenskap: 400::Informasjons- og kommunikasjonsvitenskap: 420::Simulering visualisering signalbehandling bildeanalyse: 429 VDP::Matematikk og Naturvitenskap: 400::Fysikk: 430::Elektronikk: 435 VDP::Matematikk og Naturvitenskap: 400::Fysikk: 430::Rom- og plasmafysikk: 437 |
spellingShingle |
VDP::Matematikk og Naturvitenskap: 400::Informasjons- og kommunikasjonsvitenskap: 420::Simulering visualisering signalbehandling bildeanalyse: 429 VDP::Matematikk og Naturvitenskap: 400::Fysikk: 430::Elektronikk: 435 VDP::Matematikk og Naturvitenskap: 400::Fysikk: 430::Rom- og plasmafysikk: 437 Grydeland, Tom Interferometric and high time-resolution observations of naturally enhanced ion-acoustic echoes at the EISCAT Svalbard radar: Software radar and incoherent scattering |
topic_facet |
VDP::Matematikk og Naturvitenskap: 400::Informasjons- og kommunikasjonsvitenskap: 420::Simulering visualisering signalbehandling bildeanalyse: 429 VDP::Matematikk og Naturvitenskap: 400::Fysikk: 430::Elektronikk: 435 VDP::Matematikk og Naturvitenskap: 400::Fysikk: 430::Rom- og plasmafysikk: 437 |
description |
We know that the visible Aurora Borealis is structured on many different scales, down to a few tens of metres. By using the EISCAT radars on Svalbard as an interferometer, we have found structures in the radio echoes from the auroral ionosphere on a scale approaching that of the visible aurora, and simultaneously with it, but at far greater ranges. In this thesis we discuss how these radar observations were made, what they imply for theoretical explanations, as well as a new framework for the design and implementation of software-defined radar and other radio science instrumentation, in particular the signal processing which made these observations possible. |
format |
Doctoral or Postdoctoral Thesis |
author |
Grydeland, Tom |
author_facet |
Grydeland, Tom |
author_sort |
Grydeland, Tom |
title |
Interferometric and high time-resolution observations of naturally enhanced ion-acoustic echoes at the EISCAT Svalbard radar: Software radar and incoherent scattering |
title_short |
Interferometric and high time-resolution observations of naturally enhanced ion-acoustic echoes at the EISCAT Svalbard radar: Software radar and incoherent scattering |
title_full |
Interferometric and high time-resolution observations of naturally enhanced ion-acoustic echoes at the EISCAT Svalbard radar: Software radar and incoherent scattering |
title_fullStr |
Interferometric and high time-resolution observations of naturally enhanced ion-acoustic echoes at the EISCAT Svalbard radar: Software radar and incoherent scattering |
title_full_unstemmed |
Interferometric and high time-resolution observations of naturally enhanced ion-acoustic echoes at the EISCAT Svalbard radar: Software radar and incoherent scattering |
title_sort |
interferometric and high time-resolution observations of naturally enhanced ion-acoustic echoes at the eiscat svalbard radar: software radar and incoherent scattering |
publisher |
Universitetet i Tromsø |
publishDate |
2003 |
url |
https://hdl.handle.net/10037/282 |
geographic |
Svalbard |
geographic_facet |
Svalbard |
genre |
EISCAT Svalbard |
genre_facet |
EISCAT Svalbard |
op_relation |
https://hdl.handle.net/10037/282 URN:NBN:no-uit_munin_131 |
op_rights |
openAccess Copyright 2003 The Author(s) |
_version_ |
1800750847453298688 |