Zobrazeno 1 - 10
of 121
pro vyhledávání: '"Sutinjo, Adrian"'
Autor:
Price, Danny C., Tong, Cheuk-Yu Edward, Sutinjo, Adrian T., Patra, Nipanjana, Greenhill, Lincoln J.
Radiometer experiments to detect 21-cm Hydrogen line emission from the Cosmic Dawn and Epoch of Reionization rely upon precise absolute calibration. During calibration, noise generated by amplifiers within the radiometer receiver must be accounted fo
Externí odkaz:
http://arxiv.org/abs/2305.11479
Autor:
Sutinjo, Adrian T., Scott, Danica R., James, Clancy W., Glowacki, Marcin, Bannister, Keith W., Cho, Hyerin, Day, Cherie K., Deller, Adam T., Perrett, Timothy P., Shannon, Ryan M.
Studies of the time-domain structure of fast radio bursts (FRBs) require an accurate estimate of the FRB dispersion measure in order to recover the intrinsic burst shape. Furthermore, the exact DM is itself of interest when studying the time-evolutio
Externí odkaz:
http://arxiv.org/abs/2302.06220
Measuring Noise Parameters Using an Open, Short, Load, and 1/8-wavelength Cable as Source Impedances
Autor:
Price, Danny C., Tong, Cheuk-Yu Edward, Sutinjo, Adrian T., Greenhill, Lincoln J., Patra, Nipanjana
Noise parameters are a set of four measurable quantities which determine the noise performance of a radio-frequency device under test. The noise parameters of a 2-port device can be extracted by connecting a set of 4 or more source impedances at the
Externí odkaz:
http://arxiv.org/abs/2210.07080
Autor:
Sutinjo, Adrian T., McKinley, Benjamin, Belostotski, Leonid, Ung, Daniel C. X., Thekkeppattu, Jishnu N.
We present design equations for a two-element closely-spaced interferometer for measuring the noise temperature of a uniform sky. Such an interferometer is useful for observing highly diffuse radio sources such as the Milky Way and Cosmological signa
Externí odkaz:
http://arxiv.org/abs/2009.04643
Autor:
Borg, Josef, Magro, Alessio, Adami, Kristian Zarb, Acedo, Eloy de lera, Sutinjo, Adrian, Ung, Daniel
This paper deals with the calibration of the analogue chains of a Square Kilometre Array (SKA) phased aperture array station, using embedded element patterns (one per antenna in the array, thus accounting for the full effects of mutual coupling) or a
Externí odkaz:
http://arxiv.org/abs/2003.07306
This paper presents a framework to compute the receiver noise temperature (Trcv) of two low-frequency radio telescopes, the Murchison Widefield Array (MWA) and the Engineering Development Array (EDA). The MWA was selected because it is the only opera
Externí odkaz:
http://arxiv.org/abs/2003.05116
Publikováno v:
In Advances in Space Research 15 December 2023 72(12):5503-5519
We present two methods for measuring the noise temperature of a differential input single-ended output (DISO) Low-Noise Amplifier (LNA) connected to an antenna. The first method is direct measurement of the DISO LNA and antenna in an anechoic chamber
Externí odkaz:
http://arxiv.org/abs/1806.10808
Autor:
Wayth, Randall, Sokolowski, Marcin, Booler, Tom, Crosse, Brian, Emrich, David, Grootjans, Robert, Hall, Peter J., Horsley, Luke, Juswardy, Budi, Kenney, David, Steele, Kim, Sutinjo, Adrian, Tingay, Steven J., Ung, Daniel, Walker, Mia, Williams, Andrew, Beardsley, A., Franzen, T. M. O., Johnston-Hollitt, M., Kaplan, D. L., Morales, M. F., Pallot, D., Trott, C. M., Wu, C.
We describe the design and performance of the Engineering Development Array (EDA), which is a low frequency radio telescope comprising 256 dual-polarisation dipole antennas working as a phased-array. The EDA was conceived of, developed, and deployed
Externí odkaz:
http://arxiv.org/abs/1707.03499
Autor:
Sutinjo, Adrian T., Ung, Daniel, Colegate, Tim M., Wayth, Randall B., Hall, Peter J., Acedo, Eloy de Lera
Radio interferometry most commonly involves antennas or antenna arrays of identical design. The identical antenna assumption leads to a convenient and useful mathematical simplification resulting in a scalar problem. An interesting variant to this is
Externí odkaz:
http://arxiv.org/abs/1705.08109