Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 16 of 16 for “"Square Kilometre Array (SKA)"”.
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The Design of an Anti-Aliasing Filter for the Next Generation Digitiser
MeerKAT, is a 64-element radio astronomy antenna array which has been recently constructed in the Northern Cape Province of South Africa. It serves as South Africa's contribution towards the international Square Kilometre Array (SKA) project. The MeerKAT array has been designed to observe radio …
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Unsupervised machine learning applied to radio data
… The next generation of instruments like the Square Kilometre Array (SKA) and the Vera C. Rubin Observatory are expected to produce orders of magnitude more astronomical data at higher resolution and sensitivity. Ongoing efforts in the form of surveys and data analysis techniques in astronomy …
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The clustering of galaxies in hierarchical galaxy formation models
… volume for redshift surveys planned with Square Kilometre Array (SKA) and compared with that of the optical Euclid mission. Finally, we study the clustering of faint extragalactic sources which are one of the foregrounds in PLANCK maps. We predict the clustering of faint extragalactic …
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L-band RFI measurement system simulation and investigation
The Square Kilometre Array (SKA) is a multi billion dollar international project to create a receiving surface of a million square metres, one hundred times larger than the biggest receiving surface now in existence. The SKA core array will have to be located in a remote area. Therefore countries …
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Hartbeesthoek Radio Astronomy Observatory (HartRAO) Pioneering Advantage: Exploring Scientific Instrumentation Co-Location Benefits in Ensuring African Research Facility Sustainability
… with instrument co-location capacity in the 8 Square Kilometre Array (SKA) African Very Long Baseline Interferometry Network (AVN) partner countries. The premise of the research is that the Hartebeesthoek Radio Astronomy Observatory (HartRAO) had laid down a blue-print and is well-suited as a …
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Radio Frequency Interference: Simulations for Radio Interferometry Arrays
… problems for astronomy in the era of the Square Kilometre Array (SKA). Traditionally RFI is dealt with through simple algorithms that remove unexpected rapid changes but the recent explosion of machine learning and artificial intelligence (AI) provides an exciting opportunity for pushing …
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Genetic programming applied to RFI mitigation in radio astronomy
… an observation run of the KAT-7 radio telescope array built by the South African Square Kilometre Array (SKA-SA). Karoo GP, kNN, and SVM were comparatively employed, the outcome of which provided noteworthy correlations between input parameters, the complexity of the evolved hypotheses, and …
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A new systemic model for the implementation of sustainable space science and technology investment for Sub-Saharan African economies: an implementation process derived from a case study of MeerKAT and the Square Kilometre Array projects
… using the MeerKAT project and the forthcoming Square Kilometre Array (SKA) as central case studies. Econometric analysis of Sub Saharan African (SSA) economies reveals that standard economic inputs namely labour, capital, and technology, are insufficient to plan for or predict growth in this …
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A study of potential calibrators using the KAT-7 radio telescope
… of potential calibrators observed by the Karoo Array Telescope (KAT-7). The KAT-7 is an engineering prototype for the coming sensitive array, the MeerKAT, one of the pathfinders for the Square Kilometre Array (SKA). This thesis plays a supporting role in the ongoing commissioning activities of …
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RFI monitoring for the MeerKAT Radio Telescope
… building MeerKAT, a 64 dish radio telescope array, as a pre-cursor for the proposed Square Kilometre Array (SKA). Both telescopes will be located at a remote site in the Karoo with a low level of Radio Frequency Interference (RFI). It is important to maintain a low level of RFI to ensure that …
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Accelerating radio transient detection using the Bispectrum algorithm and GPGPU
Modern radio interferometers such as those in the Square Kilometre Array (SKA) project are powerful tools to discover completely new classes of astronomical phenomena. Amongst these phenomena are radio transients. Transients are bursts of electromagnetic radiation and is an exciting area of …
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Acceleration of the noise suppression component of the DUCHAMP source-finder
The next-generation of radio interferometer arrays - the proposed Square Kilometre Array (SKA) and its precursor instruments, The Karoo Array Telescope (MeerKAT) and Australian Square Kilometre Path finder (ASKAP) - will produce radio observation survey data orders of magnitude larger than current …
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GPU acceleration of the frequency domain acceleration search for binary pulsars
… next-generation radio telescopes such as the Square Kilometre Array (SKA), will have to be performed in real time as the volumes of raw data produced will be too large to be stored for an extended period. These computational requirements are compounded when searching for binary pulsars as …
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Classification of multiwavelength transients with machine learning
… the advent of powerful telescopes such as the Square Kilometre Array (SKA), its precursor MeerKAT and the Large Synoptic Survey Telescope (LSST), we are entering a golden era of multiwavelength transient astronomy. The large MeerKAT science project ThunderKAT may dramatically increase the …
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A Pathway to EMU: the SCORPIO Project
… The most outstanding ones among them will be the Square Kilometre Array (SKA) and its precursors, such as the Australian SKA Pathfinder (ASKAP) and MeerKAT. Several surveys will be carried out, in continuum and spectral line. In particular we will have as continuum surveys the Evolutionary Map of …
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The faint low-frequency radio universe in continuum: exploitation of the pre-SKA deepest survey
… of the radio universe that will be made by the Square Kilometre Array. I report deep 610-MHz GMRT observations of the EN1 field, a region of 1.86 deg2 . We achieve a nominal sensitivity of 7.1µ Jy beam−1 . From our 610 MHz mosaic image, we recover 4290 sources after accounting for multiple …