Analog sweep calibrator

摘要

A method and means for employing digital means to calibrate an analog sweep waveform in a range determining system. The method imparts digital accuracy in maintaining the voltage-distance analog of the sweep waveform by generating a clock defined strobe at a time when the sweep voltage should reach a reference voltage level, comparing at strobe time the sweep voltage with a precision voltage source of reference level, and correcting the slope of the sweep voltage in accordance with any discrepancy existing at the time of comparison.