Effects of Instrumentation Recorder time Base Error on Spectral Purity
AuthorLeeke, P. D.
AffiliationMinnesota Mining and Manufacturing Company
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AbstractExperimental data is presented to show how carrier amplitude of a recorded signal is affected by Time Base Error. Time Base Error effects on the sideband structure of a recorded signal are also shown for different amounts of Time Base Error and at several frequencies. The effect of capstan servo adjustment on spectral purity demonstrates the need for new methods of performance evaluation to achieve optimum performance when recording spectrum information. The data presented shows that skew (ITDE) has little effect on spectral purity for analysis bandwidths of 50 Hz or greater.
SponsorsInternational Foundation for Telemetering