Search Results - "Carozzi, T D"

Utilization of photon orbital angular momentum in the low-frequency radio domain by Thidé, B, Then, H, Sjöholm, J, Palmer, K, Bergman, J, Carozzi, T D, Istomin, Ya N, Ibragimov, N H, Khamitova, R

“…We show numerically that vector antenna arrays can generate radio beams that exhibit spin and orbital angular momentum characteristics similar to those of…”
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A Fundamental Figure of Merit for Radio Polarimeters by Carozzi, T D, Woan, G

“…Many modern radio applications, such as astronomy and remote sensing, require high-precision polarimetry. These applications put exacting demands on radio…”
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A generalized measurement equation and van Cittert-Zernike theorem for wide-field radio astronomical interferometry by Carozzi, T. D., Woan, G.

“…We derive a generalized van Cittert-Zernike (vC-Z) theorem for radio astronomy that is valid for partially polarized sources over an arbitrarily wide field of…”
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Competition between Langmuir and upper-hybrid turbulence in a high-frequency-pumped ionosphere by Thidé, B, Sergeev, E N, Grach, S M, Leyser, T B, Carozzi, T D

“…We show how the secondary escaping radiation, also known as stimulated electromagnetic emission (SEE), from the ionosphere irradiated by a high-intensity radio…”
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Intrinsic instrumental polarization and high-precision pulsar timing by Foster, G., Karastergiou, A., Paulin, R., Carozzi, T. D., Johnston, S., van Straten, W.

“…Radio telescopes are used to accurately measure the time of arrival (ToA) of radio pulses in pulsar timing experiments that target mostly millisecond pulsars…”
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Observation of continuum radiations from the Cluster fleet: first results from direction finding by DECREAU, P. M. E, DUCOIN, C, BUCKLEY, A. M, CAROZZI, T. D, LE ROUZIC, G, RANDRIAMBOARISON, O, RAUCH, J.-L, TROTIGNON, J.-G, VALLIERES, X, CANU, P, DARROUZET, F, GOUGH, M. P

“…The Cluster fleet offers the first possibility of comparing non-thermal terrestrial continuum radiation from similarly equipped nearby observation points. A…”
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Precession of the whistler polarisation plane normal observed on Freja by Karlsson, R. L., Carozzi, T. D., Bergman, J. E. S., Eriksson, A. I.

“…We have observed that the normal to the polarisation plane of a whistler precesses around the geomagnetic field. Magnetic field observations by the Freja…”
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Orbital angular momentum in radio: Measurement methods by Mohammadi, Siavoush M., Daldorff, Lars K. S., Forozesh, Kamyar, Thidé, Bo, Bergman, Jan E. S., Isham, Brett, Karlsson, Roger, Carozzi, T. D.

“…Novel measurement and approximation methodologies for studying orbital angular momentum (OAM) modes in radio beams, i.e., electromagnetic beam modes having…”
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Instantaneous local wave vector estimation from multi-spacecraft measurements using few spatial points by CAROZZI, T. D, BUCKLEY, A. M, GOUGH, M. P

“…We introduce a technique to determine instantaneous local properties of waves based on discrete-time sampled, real-valued measurements from 4 or more spatial…”
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Stimulated electromagnetic emissions during pump frequency sweep through fourth electron cyclotron harmonic by Carozzi, T. D., Thidé, B., Grach, S. M., Leyser, T. B., Holz, M., Komrakov, G. P., Frolov, V. L., Sergeev, E. N.

“…The frequency of a high‐power HF radio wave incident on the ionosphere was swept, using a computer‐controlled transmitter signal, in <10 s within a 60‐kHz‐wide…”
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Statistical properties of ionospheric stimulated electromagnetic emissions by KARLSSON, R. L, CAROZZI, T. D, NORIN, L, BERGMAN, J. E. S, THIDE, B

“…We have analysed the statistical properties of the stimulated electromagnetic emissions (SEE) spectral features in the steady state, reached after a long…”
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Multi-spacecraft observations of broadband waves near the lower hybrid frequency at the Earthward edge of the magnetopause by André, M., Behlke, R., Wahlund, J.-E., Vaivads, A., Eriksson, A.-I., Tjulin, A., Carozzi, T. D., Cully, C., Gustafsson, G., Sundkvist, D., Khotyaintsev, Y., Cornilleau-Wehrlin, N., Rezeau, L., Maksimovic, M., Lucek, E., Balogh, A., Dunlop, M., Lindqvist, P.-A., Mozer, F., Pedersen, A., Fazakerley, A.

“…Broadband waves around the lower hybrid frequency (around 10 Hz) near the magnetopause are studied, using the four Cluster satellites. These waves are common…”
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Experimental study of nonlinear interaction of plasma flow with charged thin current sheets: 2. Hall dynamics, mass and momentum transfer by Savin, S., Amata, E., Andre, M., Dunlop, M., Khotyaintsev, Y., Decreau, P. M. E., Rauch, J. L., Trotignon, J. G., Buechner, J., Nikutowski, B., Blecki, J., Skalsky, A., Romanov, S., Zelenyi, L., Buckley, A. M., Carozzi, T. D., Gough, M. P., Song, P., Reme, H., Volosevich, A., Alleyne, H., Panov, E.

“…Proceeding with the analysis of Amata et al. (2005), we suggest that the general feature for the local transport at a thin magnetopause (MP) consists of the…”
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Asymmetric response of the topside ionosphere to large-scale IGW generated during the November 30, 1979, substorm by Karpachev, A.T., Deminova, G.F., Beloff, N., Carozzi, T.D., Denisenko, P.F., Lester, M., Karhunen, T.

“…We used bottomside ground observations and topside sounding data from the Intercosmos-19 satellite to study a Travelling Ionospheric Disturbance (TID) that…”
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Detection of large scale TIDs associated with the dayside cusp using SuperDARN data by Karpachev, A.T., Beloff, N., Carozzi, T.D., Denisenko, P.F., Karhunen, T.J.T., Lester, M.

“…Variations in the dayside ionosphere parameters as a result of a large-scale acoustic gravity wave (LS AGW) were studied for the 17 February 1998 substorm…”
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New Definition for Dual-Polarized Antenna Sensitivity by Carozzi, T. D.

“…Sensitivity is arguably the single most important defining characteristic of a radio telescope. This is because it sets the threshold for what sources can…”
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Imaging on a sphere with interferometers: the spherical wave harmonic transform by Carozzi, T. D.

“…I present an exact and explicit solution to the scalar (Stokes flux intensity) radio interferometer imaging equation on a spherical surface which is valid also…”
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Parallel processing speed increase of the one-bit auto-correlation function in hardware by Huber, Nicolas, Hromalik-Pouchet, M.S., Carozzi, T.D., Gough, M.P., Buckley, A.M.

“…Recently, a serial implementation of the one-bit auto- and cross-correlation functions (ACF and CCF respectively) in a field programmable gate array (FPGA) has…”
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Global pattern of the ionospheric response to large-scale internal gravity waves by Karpachev, A.T., Deminova, G.F., Beloff, N., Carozzi, T.D., Denisenko, P.F., Karhunen, T.J.T., Lester, M.

“…The global pattern of the ionospheric response to large-scale acoustic gravity waves (LS AGW) has been constructed on the basis of an analysis of the large…”
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Intrinsic cross-polarization ratio (IXR) for antenna arrays and improving polarimetry via polarization diversity by Carozzi, T. D.

“…Future radio telescopes such as the SKA, will have to employ aperture arrays with full polarimetry for observations at the lowest frequencies. In the design…”
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