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Telemetry Data Recovery Method Using Multiple PCM Data  

Jung, Haeseung (한국항공우주연구원 발사체전자팀)
Kim, Joonyun (한국항공우주연구원 발사체전자팀)
Publication Information
Aerospace Engineering and Technology / v.11, no.2, 2012 , pp. 96-102 More about this Journal
Abstract
Recently, interests about frame error reduction method, using multiple PCM data which are received at several ground stations, are increasing. Simple data merge method is already applied to data processing system at Naro Space Center and have been used in the first and the second flight test analysis of KSLV-I. This paper is focused on error reduction with error correcting merge algorithm and time-delayed data correction algorithm. Result of applying the proposed algorithms to the flight test data shows 1.32% improvement in error rate, compared to simple-data-merge method. It is considered that presented algorithms could be very useful in generating various telemetry merge data.
Keywords
Telemetry; Data Merge; Error Correction; Time Delayed Data;
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