Flutter Compensation of Data Recorded on Magnetic Tape in a Severe Environment.
ROYAL AIRCRAFT ESTABLISHMENT FARNBOROUGH (ENGLAND)
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The report discusses the theoretical performance of subtractive and multiplicative techniques for the compensation of tape flutter error in frequency modulation magnetic recording. It is assumed that in a severe environment the predominant flutter occurs in the record operation. The effect of tape skew and differential phase shift in the electronic circuits are taken into account. The results are illustrated by reference to typical tape transports, of known performance, for use where space is limited and the environment severe. It is deduced that even under these conditions both compensation techniques can result in a significant reduction in the error due to tape flutter, but that there are circumstances for which the additional complexity of multiplicative compensation would not be justified. Author
- Recording and Playback Devices