A Technique for Measuring Pulse-Train Jitter

摘要

A quantitative definition of pulse-train jitter, for measurement purposes, is developed. It consists essentially of showing that pulse jitter reflects as a modulation of each harmonic of the 'mean' pulse train, and that consequently the jitter may be expressed as the ratio of the jitter power in the AM sidebands, associated with a convenient harmonic to the power in that harmonic. A detailed description of the instrumentation necessary for quantitative jitter measurements is given; examples of measurements on 7C-GHz magnetrons (BL-234C) are cited. The uniqueness of this technique lies in the relative ease with which it can be instrumented. (Author)