Fast undersampling

Details Fast undersampling Fast undersampling

1996-12-06

1998-06-16

Trammell, James P.

Boots, shoes, and leggings

364484, G01R 2300

Patent

active

057681554

ABSTRACT:
A method of operating automatic test equipment for sampling an electronic signal produced by a device under test, whereby an effective sampling frequency, FEFF, is determined such that FEFF=NFREP, where N is a desired number of data samples and FREP is the repetition frequency of the electronic signal. At least one replication of the electronic signal is then sampled at a rate equal to FACT, where FACT is equal to FEFF/K, and K is a positive integer value other than one. The value, K, and the number of data samples, N, have no common multiplicative values. As a result, the set of data samples, obtained after sampling at least one replication of the electronic signal at the rate FACT, contains all of the data samples that would be obtained by sampling one replication of the electronic signal at the rate FEFF. The set of data samples can then be reordered to facilitate subsequent analysis of the data samples by the automatic test equipment.

REFERENCES:
patent: 4495586 (1985-01-01), Andrews
patent: 4626827 (1986-12-01), Kitamura et al.
patent: 4791404 (1988-12-01), Hollister
patent: 4928251 (1990-05-01), Marzalek et al.
patent: 5485395 (1996-01-01), Smith
patent: 5589763 (1996-12-01), Burns

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