IJERT-EMS
IJERT-EMS

Investigation of Potential RFI Threats to Ghana Radio Telescope Observatory-Nkutunse


Investigation of Potential RFI Threats to Ghana Radio Telescope Observatory-Nkutunse
Authors : Joseph A. K. Nsor, Abdul-rahman Ahmed, Joyce Koranteng-acquah, Sani Ellis Mubarak
Publication Date: 14-08-2017

Authors

Author(s):  Joseph A. K. Nsor, Abdul-rahman Ahmed, Joyce Koranteng-acquah, Sani Ellis Mubarak

Published in:   International Journal of Engineering Research & Technology

License:  This work is licensed under a Creative Commons Attribution 4.0 International License.

Website: www.ijert.org

Volume/Issue:   Volume. 6 - Issue. 08 , August - 2017

e-ISSN:   2278-0181

Abstract

This research seeks to investigate potential Radio Frequency Interference that could threaten the operation of the yet to be deployed telescope observatory at Nkutunse, Ghana. The observatory receiver system of which would be operating at 5GHz and 6.7GHz radio astronomy frequency band, is to be realized from the conversion of the decommission 32-m diameter earth satellite station at Nkutunse. A survey was conducted to determine the power level of those interferers with two different methods of RFI detection setups. Signals that are of potential threat were found at 4.92 GHz, 5.02 GHz, and 6.59 GHz, 6.62 GHz that are of concern due to the broadband nature of the observation techniques. These detections could have a significant effect on the telescope operations considering potential image frequencies and spurious responses that may arise from these interferers. A convolution technique was employed to mitigate RFI in the operating frequency window and fits a function to predict the outcome using a Savitsky Galoy filter.

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