Discrete offset dithered waveform averaging for high-fidelity digitization of repetitive signals

Patent · Tue May 16 00:00:00 EDT 2023

OSTI ID:1998381

Buckley, Brandon Walter; Muir, Ryan Douglas; Knierim, Daniel G.

Methods and devices for digitizing an analog repetitive signal using waveform averaging are described. An example method includes generating a discrete set of analog dither offset voltages, wherein at least two of the discrete set of analog dither offset voltages are different from each other, receiving the analog repetitive signal comprising multiple instances of a waveform, wherein the waveform has a waveform duration, generate a timing alignment to align each waveform of the analog repetitive signal and the corresponding analog dither offset voltage over the waveform duration, combining, based on the timing alignment, each waveform and the corresponding analog dither offset voltage over the waveform duration to produce an analog output signal, converting the analog output signal to a digital output signal, and producing, based on the timing alignment, a digital averaged signal based on averaging the multiple instances of the waveform in the analog output signal.

• Research Organization: Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States); Tektronix, Inc., Beaverton, OR (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: AC52-07NA27344
• Assignee: Lawrence Livermore National Security, LLC (Livermore, CA); Tektronix, Inc. (Beaverton, OR)
• Patent Number(s): 11,652,494
• Application Number: 17/555,226
• OSTI ID: 1998381
• Country of Publication: United States
• Language: English