Doppler shift simulation of scattered HF signals during the Tromsø HF pumping experiment on 16 February 1996
Comparisons between bistatic scatter measurements and simulation results during the Tromsø HF pumping experiment on 16 February 1996 are made. Doppler measurements of an HF diagnostic signal scattered from the field-aligned irregularities (FAIs) in the auroral E-region were carried out on the London...
Published in: | Annales Geophysicae |
---|---|
Main Authors: | , , , , , |
Format: | Text |
Language: | English |
Published: |
2018
|
Subjects: | |
Online Access: | https://doi.org/10.5194/angeo-20-1479-2002 https://angeo.copernicus.org/articles/20/1479/2002/ |
id |
ftcopernicus:oai:publications.copernicus.org:angeo35023 |
---|---|
record_format |
openpolar |
spelling |
ftcopernicus:oai:publications.copernicus.org:angeo35023 2023-05-15T16:04:45+02:00 Doppler shift simulation of scattered HF signals during the Tromsø HF pumping experiment on 16 February 1996 Borisova, T. D. Blagoveshchenska, N. F. Moskvin, I. V. Rietveld, M. T. Kosch, M. J. Thidé, B. 2018-09-27 application/pdf https://doi.org/10.5194/angeo-20-1479-2002 https://angeo.copernicus.org/articles/20/1479/2002/ eng eng doi:10.5194/angeo-20-1479-2002 https://angeo.copernicus.org/articles/20/1479/2002/ eISSN: 1432-0576 Text 2018 ftcopernicus https://doi.org/10.5194/angeo-20-1479-2002 2020-07-20T16:27:49Z Comparisons between bistatic scatter measurements and simulation results during the Tromsø HF pumping experiment on 16 February 1996 are made. Doppler measurements of an HF diagnostic signal scattered from the field-aligned irregularities (FAIs) in the auroral E-region were carried out on the London – Tromsø – St. Petersburg path at 9410 kHz from 21:00 to 22:00 UT. The scattered signals were observed both from natural and artificial ionospheric irregularities located in the vicinity of Tromsø. To simulate the Doppler frequency shifts, f d , of scattered signals, a radio channel model, named CONE, was developed. The model allows for ray tracing, group and phase paths, and Doppler frequency shift calculations. The calculated Doppler shifts were analyzed for dependence on the magnitude and direction of plasma velocities in the scattering volume. It was found that the velocity components in the north-south direction are crucial for explaining the Doppler frequency shifts of the scattered diagnostic signals. To simulate f d , real velocities obtained from the EISCAT UHF radar at an altitude of 278 km and from the digital all-sky imager during the experiment were employed. The simulation results of Doppler frequency shift variations with time are in reasonable agreement with the experimental Doppler shifts of scattered signals on the London – Tromsø – St. Petersburg path. Key words. Ionosphere (active experiments; ionospheric irregularities) Radio science (ionospheric propagation) Text EISCAT Tromsø Copernicus Publications: E-Journals Tromsø Annales Geophysicae 20 9 1479 1486 |
institution |
Open Polar |
collection |
Copernicus Publications: E-Journals |
op_collection_id |
ftcopernicus |
language |
English |
description |
Comparisons between bistatic scatter measurements and simulation results during the Tromsø HF pumping experiment on 16 February 1996 are made. Doppler measurements of an HF diagnostic signal scattered from the field-aligned irregularities (FAIs) in the auroral E-region were carried out on the London – Tromsø – St. Petersburg path at 9410 kHz from 21:00 to 22:00 UT. The scattered signals were observed both from natural and artificial ionospheric irregularities located in the vicinity of Tromsø. To simulate the Doppler frequency shifts, f d , of scattered signals, a radio channel model, named CONE, was developed. The model allows for ray tracing, group and phase paths, and Doppler frequency shift calculations. The calculated Doppler shifts were analyzed for dependence on the magnitude and direction of plasma velocities in the scattering volume. It was found that the velocity components in the north-south direction are crucial for explaining the Doppler frequency shifts of the scattered diagnostic signals. To simulate f d , real velocities obtained from the EISCAT UHF radar at an altitude of 278 km and from the digital all-sky imager during the experiment were employed. The simulation results of Doppler frequency shift variations with time are in reasonable agreement with the experimental Doppler shifts of scattered signals on the London – Tromsø – St. Petersburg path. Key words. Ionosphere (active experiments; ionospheric irregularities) Radio science (ionospheric propagation) |
format |
Text |
author |
Borisova, T. D. Blagoveshchenska, N. F. Moskvin, I. V. Rietveld, M. T. Kosch, M. J. Thidé, B. |
spellingShingle |
Borisova, T. D. Blagoveshchenska, N. F. Moskvin, I. V. Rietveld, M. T. Kosch, M. J. Thidé, B. Doppler shift simulation of scattered HF signals during the Tromsø HF pumping experiment on 16 February 1996 |
author_facet |
Borisova, T. D. Blagoveshchenska, N. F. Moskvin, I. V. Rietveld, M. T. Kosch, M. J. Thidé, B. |
author_sort |
Borisova, T. D. |
title |
Doppler shift simulation of scattered HF signals during the Tromsø HF pumping experiment on 16 February 1996 |
title_short |
Doppler shift simulation of scattered HF signals during the Tromsø HF pumping experiment on 16 February 1996 |
title_full |
Doppler shift simulation of scattered HF signals during the Tromsø HF pumping experiment on 16 February 1996 |
title_fullStr |
Doppler shift simulation of scattered HF signals during the Tromsø HF pumping experiment on 16 February 1996 |
title_full_unstemmed |
Doppler shift simulation of scattered HF signals during the Tromsø HF pumping experiment on 16 February 1996 |
title_sort |
doppler shift simulation of scattered hf signals during the tromsø hf pumping experiment on 16 february 1996 |
publishDate |
2018 |
url |
https://doi.org/10.5194/angeo-20-1479-2002 https://angeo.copernicus.org/articles/20/1479/2002/ |
geographic |
Tromsø |
geographic_facet |
Tromsø |
genre |
EISCAT Tromsø |
genre_facet |
EISCAT Tromsø |
op_source |
eISSN: 1432-0576 |
op_relation |
doi:10.5194/angeo-20-1479-2002 https://angeo.copernicus.org/articles/20/1479/2002/ |
op_doi |
https://doi.org/10.5194/angeo-20-1479-2002 |
container_title |
Annales Geophysicae |
container_volume |
20 |
container_issue |
9 |
container_start_page |
1479 |
op_container_end_page |
1486 |
_version_ |
1766400384077660160 |