Analog-to-digital converter compensation system and method
AssigneeGeneral Electric Company
InventorRichard Louis Zinser
Life of this patent
Estimating the term…
Abstract
An analog-to-digital converter compensation method includes providing at least one analog tone, converting the analog tone into digital signals, and using the digital signals to generate an error compensation model comprising a plurality of compensation values corresponding to respective digital signals. The compensation values are obtained by applying a time domain window, performing a discrete Fourier transform on digital signals within the time domain window, zeroing out transform bins except for bins within lobes on selected spurious frequencies, performing an inverse Fourier transform, and obtaining resulting signals from applying an inverse of the time domain window.
Claims17
An analog-to-digital converter compensation system comprising:
- a training signal generator configured for providing at least one analog tone;
- an analog-to-digital converter configured for converting the analog tone into digital signals;
- and
- a processor configured for using the digital signals to generate an error compensation model comprising a plurality of compensation values corresponding to respective digital signals by applying a time domain window, performing a discrete Fourier transform on digital signals within the time domain window, zeroing out transform bins except for bins within lobes on selected spurious frequencies, performing an inverse Fourier transform, and obtaining resulting signals from applying an inverse of the time domain window.
An analog-to-digital converter compensation system comprising:
- a training signal generator configured for providing at least one analog tone;
- an analog-to-digital converter configured for converting the analog tone into digital signals;
- and
- a processor configured for using the digital signals to generate an error look up table comprising a plurality of compensation values corresponding to respective digital signals and trajectory estimations by applying a time domain window, performing a discrete Fourier transform on digital signals within the time domain window, zeroing out transform bins except for bins within lobes on selected spurious frequencies, performing an inverse Fourier transform, and obtaining resulting signals from applying an inverse of the time domain window and removing edge portions of the inverse of the time domain window.
An analog-to-digital converter compensation method comprising:
- (a) providing a training signal comprising an analog tone;
- (b) converting the analog tone into digital signals;
- and
- (c) using the digital signals to generate an error compensation model comprising a plurality of compensation values corresponding to respective digital signals by
- (i) applying a time domain window,
- (ii) performing a discrete Fourier transform on digital signals within the time domain window,
- (iii) zeroing out transform bins except for bins within lobes on selected spurious frequencies,
- (iv) performing an inverse Fourier transform, and
- (v) obtaining resulting signals from applying an inverse of the time domain window.
Dependencies are inferred from the claim text.