THE APPLICATION OF SCALING TO THE PREDICTION OF THE PERFORMANCE OF DIGITAL MAGNETIC RECORDING-SYSTEMS

The performances of digital magnetic recording systems using peak dete ction are shown to be described by equations that involve parameters a nd variables which occur in ratios. Provided that these quantities var y in proportion there is no change in system performance. Thus scaling of one parameter shows how scaling of another leads to a system of un changed performance. It is further shown that the influence of a wide range of values of parameters on system performance can be accounted f or by a limited range of computations. Results are given for media and systems of high performance which arguably represent the current stat e of the art and possible future aspirations.