8-12 July 2013
Africa/Johannesburg timezone
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Noise sensitivity of a VHF broadband interferometer

Presented by Mr. Chih-Fong WEN on 9 Jul 2013 from 10:50 to 11:10
Type: Oral Presentation
Session: Space Science
Track: Track D2 - Space Science

Abstract

A VHF interferometer can be used to measure the three-dimensional source of radiation emitted by lightning discharges. This is achieved by analysing the phase delay between the signals recorded at each of the three antennas. Using a numerical model of an interferometer coded in R we simulated a simple interferometer, including the source, antennas and a data processing unit. First, a monochromatic and isotropic point source was simulated in order to validate the structure of the model. The model was then expanded to include multiple monochromatic signals and finally a truly broadband signal. Using the model we were able to simulate the effects of noise on the resolving power of the interferometer and determine under what conditions the observations become unreliable

Award

Yes

Level

MSc

Supervisor

Andrew B. Collier, collierab@gmail.com, University of Kwa-Zulu Natal, SANSA Space Science

Paper

No

Place

Location: A1-17


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