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 20 of 30 for “"Square Kilometre Array"”.
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Dark matter searches with cosmic-ray detectors and the Square Kilometre Array
Beyond gravitational evidence for dark matter, a set of search techniques are employed in the present thesis within the particle dark matter paradigm. Under the possibility of dark matter annihilating into particles of the Standard Model of Particle Physics, we study the products of annihilation …
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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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Thermal design and analysis of the SKA SA MeerKAT Digitiser
The Square Kilometre Array Project is a multi-national venture attempting to build the world's largest radio telescope. Australia and South Africa (together with other African countries), will be host to the SKA site. Both countries are building pre-cursor radio telescopes to demonstrate their …
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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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Detecting the turnover of the power spectrum with SKAO and other surveys
… of next-generation experiments, specifically the Square Kilometre Array and the Dark Energy Spectroscopic Instrument, to detect and constrain the power spectrum turnover, a key feature of the universe’s large-scale structure holding the key for probing ultra-large scales. Employing intensity …
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Detecting the turnover of the power spectrum with SKAO and other surveys
… of next-generation experiments, specifically the Square Kilometre Array and the Dark Energy Spectroscopic Instrument, to detect and constrain the power spectrum turnover, a key feature of the universe’s large-scale structure holding the key for probing ultra-large scales. Employing intensity …
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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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Detecting optical transients and variables with MeerLICHT
… on MeerKAT (South Africa’s precursor to the Square Kilometre Array), MeerLICHT is the first fully dedicated telescope to follow another telescope in a different wavelength. Through linked-pointing, MeerLICHT and MeerKAT will provide simultaneous optical and radio data of the transient sky. …
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Commensal searches for radio transients variables in the data from Mhongoose Large Survey Project
… precursor to the mid-frequency component of the Square Kilometre Array (SKA1-Mid), offers exceptional sensitivity and a wide field of view, making it ideal for exploring time-domain radio astronomy. This dissertation presents the use of MeerKAT images from three different fields of the MHONGOOSE …
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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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An analysis of internet traffic flow in SANReN using active and passive measurements
… and oversees science projects such as the Square Kilometre Array. In this study, we conduct active and passive measurements to assess the performance of SANReN and to identify problem areas in the network. Active measurements were done to determine network performance when accessing SANReN …
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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 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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A scalable database model of RFI data for the MeerKAT/SKA radio telescope
… the MeerKAT radio telescope (a precursor to the Square Kilometre Array, and one of the largest and most sensitive radio telescopes in the world to date), RFI is captured in different formats using a variety of devices including telescopes, sensors and scanners; however, the combination of data …
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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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