Phase equalisation of analogue magnetic recorders by transversal filtering
- 3 March 1977
- journal article
- Published by Institution of Engineering and Technology (IET) in Electronics Letters
- Vol. 13 (5) , 127-128
- https://doi.org/10.1049/el:19770090
Abstract
The ‘time-reversed-impulse-response’ method of phase equalisation is explained theoretically. Experimental results are presented, showing the impulse response of an analogue magnetic recorder before and after phase equalisation. The transversal-filter equaliser (32-tap analogue delay line of 320 μs length) is adjusted in the time domain so that actual phase-response measurements are not necessary.Keywords
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