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Shielding Characterization of Local Square Kilometre Array Site in South Africa Using a Multicopter,
koje će održati Hardie Pienaar, BE., Stellenbosch University, South Africa.
Predavanje će se održati u petak, 2. listopada 2015. u 14 sati u dvorani D306. Sadržaj predavanja i životopis predavača pročitajte u nastavku obavijesti.
ABSTRACT
The Northern Cape in South Africa has been chosen to host part of the Square Kilometre Array (SKA) due to the area's overall radio quietness. As part of the supporting systems for the Karoo Array Telescope (KAT), a processing building has been constructed on the site. With the Karoo Array Processing Building (KAPB) now in place, investigating the radio frequency interference (RFI) of the building has become a high priority. If successful, understanding of RFI propagation on-site will shape policies and contribute to the sustainability of on-site radio quietness. This work focuses on understanding the shielding and propagation characteristics of both the KAPB building, as well as a man-made soil berm. On-site measurements, scale models and computational models were used to investigate the local electromagnetic environment. Additionally, a Multi-copter vehicle was developed to support on-site measurement campaigns. Finally, using data measured on-site it was possible to develop empirical models for local shielding estimations.
SHORT BIOGRAPHY
Hardie Pienaar (S’11) was born in Cape Town, South Africa, in 1989. He received a BEng degree in electrical and electronic engineering from the University of Stellenbosch, South Africa, in 2011.
In 2012, he worked as a Telecom Engineer at the national railway company. Since the beginning of 2013, he has been working on his Ph.D. which was recently submitted for examination. His Ph.D. focused on the Square Kilometre Array project and formed part of the EMRIn group at Stellenbosch University. His current research interests include RF propagation studies including its measurement and modeling as well as the development of Multicopters as RF metrology instruments.
