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Design improvement and prototyping of a Testbed for the Calibration and RFI Mitigation Algorithms used in OLFAR

Van 't Hof, J. J. (2016) Design improvement and prototyping of a Testbed for the Calibration and RFI Mitigation Algorithms used in OLFAR.

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Abstract:A new generation of radio telescopes is being developed using nano satellite technology. A swarm of satellites can function together as one large radio telescope performing interferometry at frequencies below 30 MHz. These frequencies hold interesting insights in cosmology. Signals at these low-frequencies cannot be observed on Earth as they are blocked by Earth's ionosphere. In addition, the influences of man-made interference are less in space based telescopes. The OLFAR (Orbiting Low Frequency Antennas for Radio Astronomy) project is aimed at building such a radio telescope for exploring these low-frequencies. For OLFAR, new software algorithms are developed for the calibration and interference mitigation. To test these algorithms a testbed is to be developed which represents a swarm of satellites in OLFAR. During this thesis follow-up work was performed on designing and implementing the testbed. With these additions the remainder of the work on the testbed consists mostly of finalizing designs for the physical construction and building the remainder of components of the testbed. The design of the testbed as it is now meets all specifications and should once constructed be able to fulfil all of the tasks required to test the algorithms for calibration and RFI mitigation.
Item Type:Essay (Bachelor)
Faculty:EEMCS: Electrical Engineering, Mathematics and Computer Science
Subject:39 astronomy, 53 electrotechnology
Programme:Electrical Engineering BSc (56953)
Link to this item:http://purl.utwente.nl/essays/69527
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