Phase equalisation of analogue magnetic recorders by transversal filtering |
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| Authors: | Preis D |
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| Affiliation: | Harvard University, Gordon McKay Laboratory, Division of Engineering & Applied Physics, Cambridge, USA; |
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| 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 ?s length) is adjusted in the time domain so that actual phase-response measurements are not necessary. |
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