Multiinstrument observations of a geomagnetic storm and its effects on the Arctic ionosphere: A case study of the 19 February 2014 storm

Autor: Attila Komjathy, Olga P. Verkhoglyadova, Per Høeg, Mark D. Butala, Hans-Henrik von Benzon, Anthony J. Mannucci, Tibor Durgonics, E. B. Shume, Richard B. Langley

Publikováno v: Durgonics, T, Komjathy, A, Verkhoglyadova, O, Shume, E B, von Benzon, H-H, Mannucci, A J, Butala, M D, Høeg, P & Langley, R B 2017, ' Multi-Instrument Observations of a Geomagnetic Storm and its Effects on the Arctic Ionosphere: A Case Study of the 19 February 2014 Storm : Observations of a Geomagnetic Storm ', Radio Science, vol. 52, no. 1, pp. 146–165 . https://doi.org/10.1002/2016RS006106

We present a multiinstrumented approach for the analysis of the Arctic ionosphere during the 19 February 2014 highly complex, multiphase geomagnetic storm, which had the largest impact on the disturbance storm-time index that year. The geomagnetic st

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::54cf4192939f235e941564c421f3fdae
https://doi.org/10.1002/2016rs006106

Wave optics-based LEO-LEO radio occultation retrieval

Autor: Hans-Henrik von Benzon, Per Høeg

Publikováno v: Radio Science. 51:589-602

This paper describes the theory for performing retrieval of radio occultations that use probing frequencies in the XK and KM band. Normally, radio occultations use frequencies in the L band, and GPS satellites are used as the transmitting source, and

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::6abd3a4748eaa07d1dee1b158fdba888
https://doi.org/10.1002/2015rs005852

GNSS Software Receiver for UAVs

Autor: Daniel Haugård Olesen, Jakob Jakobsen, Hans-Henrik von Benzon, Per Knudsen

Publikováno v: Olesen, D M, Jakobsen, J, von Benzon, H-H & Knudsen, P 2016, ' GNSS Software Receiver for UAVs ', European Journal of Navigation, vol. June .
Technical University of Denmark Orbit

This paper describes the current activities of GPS/GNSS Software receiver development at DTU Space. GNSS Software receivers have received a great deal of attention in the last two decades and numerous implementations have already been presented. DTU

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::71dfe226f9e9fa2841336d100409b37c
https://orbit.dtu.dk/en/publications/e5b06ead-32fe-43e4-82cd-12a422b437e1

GNSS-based Observations and Simulations of Spectral Scintillation Indices in the Arctic Ionosphere

Autor: Tibor Durgonics, Per Høeg, Hans-Henrik von Benzon, Attila Komjathy

Publikováno v: Durgonics, T, Hoeg, P, von Benzon, H-H & Komjathy, A 2015, ' GNSS-based Observations and Simulations of Spectral Scintillation Indices in the Arctic Ionosphere ' 2015 AGU Fall Meeting, San Francisco, United States, 14/12/2015-18/12/2015, .
Technical University of Denmark Orbit

During disturbed times, ionospheric scintillations can be severe and adversely impact satellite-based positioning and radio transmissions. The scintillation occurs in the amplitude, phase, polarization, and angle of arrival of the signal. Precise obs

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::41830ea5fe8e1aee6b075cdbc9b53bc6
http://orbit.dtu.dk/ws/files/117884451/GNSS_based_Observations_and_Simulations_of_Spectral_Scintillation_Indices_in_the_Arctic_Ionosphere_2_.pdf

Size and Velocity Measurements of Large Drops in Air and in a liquid-liquid two-phase flow by the phase-Doppler technique

Autor: Edward I. Hayes, Hans-Henrik von Benzon, Per Haugen

Publikováno v: Particle & Particle Systems Characterization. 11:63-72

Particles comparable in size to or larger than the measurement volume need extra consideration when measured by a phase-Doppler system. The phase of the Doppler burst received when such particles traverse the measurement volume depends not only on th

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::400338ccdaff790d3de549c7f960839e
https://doi.org/10.1002/ppsc.19940110109