Abstract :
A major figure of merit in digital scopes is the size of the acquisition memory. The author discusses the importance of this specification by examining a series of advantages directly traceable to long memories. Long records provide higher sampling rates, higher single-shot bandwidth, vastly reduced aliasing effects, substitution for inaccurate glitch detectors, improved signal-to-noise ratios, wide dynamic range in the frequency domain, and high signal processing accuracy. The author discusses sampling-rate variation, acquisition of long-duration events, glitch detection, accuracy of pulse waveform measurements, and waveform reconstruction and distortion
Keywords :
cathode-ray oscilloscopes; digital instrumentation; digital storage; acquisition memory; aliasing effects; digital scopes; distortion; dynamic range; frequency domain; glitch detectors; pulse waveform measurements; sampling rates; signal processing accuracy; signal-to-noise ratios; single-shot bandwidth; waveform reconstruction; Bandwidth; Detectors; Distortion measurement; Dynamic range; Event detection; Frequency domain analysis; Pulse measurements; Signal processing; Signal sampling; Signal to noise ratio;
