Digital acquisition system including a high-speed sampling gate

Details Digital acquisition system including a high-speed sampling gate Digital acquisition system including a high-speed sampling gate

G - Physics

01

R

375/33

G01R 13/20 (2006.01) G01R 13/34 (2006.01) H03M 1/00 (2006.01)

Patent

CA 1226688

-32- Abstract of the Disclosure A digital acquisition system includes a high- speed sampling gate with analog memory for sampling input signals. The samples are converted to digital representations and stored in a digital memory. The digital representations are selectively recalled from the digital memory and fed back as estimators to the sampling gate's analog memory. Since the estimators are essentially the previous samples for each point of a given waveform, the stored waveform converges to the input waveform very quickly, facilitating accurate waveform replication. Embodiments for both sequential sampling and pseudo-random sampling are provided. Oper- ational techniques of the digital acquisition system include noise reduction, loop gain determination, adap- tive filtering and signal averaging.

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