Take a sneak peek at the new NIST.gov and let us know what you think!
(Please note: some content may not be complete on the beta site.).

View the beta site
NIST logo

Publication Citation: Improved Time-Base for Waveform Parameter Estimation

NIST Authors in Bold

Author(s): Bryan C. Waltrip; Owen B. Laug; Gerard N. Stenbakken;
Title: Improved Time-Base for Waveform Parameter Estimation
Published: May 01, 2000
Abstract: An improved gated-oscillator time-base and associated auto-calibration algorithm for use in a high-accuracy sampling waveform acquistion system are described. The time-base architecture consists of a stable 100 MHz gated-oscillator, 24-bit counter chain, and a clock period interpolator. The nominal, uncorrected linearity of the time-base is approximately +/-30 ps. By using an iterative, sine-fit based algorithm, the linearity has been improved to < + /-5 ps. Details of the performance and major sources of error of the time-base and correction algorithm in an equivalent time sampling system are also discussed.
Proceedings: Proc. IEEE Instrumentation and Technology Conference (IMTC)
Volume: 3
Pages: pp. 1518 - 1522
Location: Baltimore, MD
Dates: May 1-4, 2000
Keywords: auto-calibration,comparator,counter,equivalent-time,oscillator,ramp,sampling,sine-fit,time-base
Research Areas: Energy Conversion, Storage, and Transport
PDF version: PDF Document Click here to retrieve PDF version of paper (3MB)