Analog/digital converter with small crest factor dither signal s

Details Analog/digital converter with small crest factor dither signal s Analog/digital converter with small crest factor dither signal s

1998-05-15

2000-05-16

Tokar, Michael

Coded data generation or conversion

Analog to or from digital conversion

Analog to digital conversion

341131, H03M 112

Patent

active

060643285

ABSTRACT:
In an analog-digital converter, a sine signal angle-modulated with noise or pseudonoise is used as a dither signal. The dither signal is superposed on an analog useful signal that is to be digitized. This signal is then digitized. The dither signal is then filtered out to produce the digitized useful signal.

REFERENCES:
patent: 4761634 (1988-08-01), Yamaguchi et al.
patent: 5525984 (1996-06-01), Bunker
Babu et al., Testing an ADC . . . Dither, IEEE Transaction on instrumentation and Measurement, vol. 47, No. 4, pp. 839-848, Aug. 1998.
Wagdy et al. Linearizing . . . Digital Dither, IEEE Transactions on Instrumewntation and Measurement, vol. 43, No. 2, pp. 146-150, Apr. 1994.
Wagdy et al., Validity of Uniform . . . With Dither, IEEE Transactions on Instrumentation and Measurement, vol. 38, No. 3, pp. 718-722, Jun. 1989.

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