Publication: Satellite link margin prediction and performance of ASTRO Malaysia
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Date
2009
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Abstract
The link performance prediction is important to ensure sufficient customer link margin and transmission availability. In this paper, a link budget prediction tool for analyzing and comparing predicted and measured C/N and Eb/N0 using a typical link margin and transmission availability been developed using Matlab. A study was conducted in ASTRO's uplink station facility in Cyberjaya on 13.2 m and 0.6 m downlink antenna. It was shown that the C/N and Eb/N0 measured value for both antennas were about � 3 dB as compared to predicted values. The link margin for both values was found sufficient in the worst case condition due to signal attenuation. For 13.2 m antenna, C/N's link margin is 12 dB and E b/N0's link margin is 8.1 dB while for 0.6 m, C/N's link margin is 3.5 dB and Eb/N0's link margin is 5.8 dB. The total transmission availability conforms to the standard which was promised to their customer with more than 99.7% availability. � 2009 IEEE.
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Keywords
ASTRO, Availability, Link budget, Link budgets, Link margin, Link performance, Malaysia, Prediction tools, Signal attenuation, Total transmission, Uplink stations, Worst case, Astronomy, Budget control, MATLAB, Satellite links, Signal processing, Antennas