oversampling

(redirected from Over-sampling)

oversampling

Multiplying the number of samples in a digital signal by some factor. For example, the early CD players were improved when their digital audio signals were multiplied 8 times before sending them to the digital-to-analog converter (DAC). The digital filters were found to operate more efficiently at higher frequencies. See upsampling.
References in periodicals archive ?
The national sampling requirements should include a N=1000 national sample as well as options for over-sampling ( N=100 and N=200): 1) New Orleans, 2) Mississippi Gulf Coast (including Biloxi, Gulf Port, Pass Christian, Pascagoula, Hancock County), and 3) Louisiana Gulf Coast region (including New Orleans, Houma, New Iberia, Lafayette, St Tammany Parish).
Nor are your neighbors' reactions likely to be, if they are in the habit of over-sampling their product.
For the quantitative analysis, BFA commissioned household surveys in Kenya, Pakistan, Papua New Guinea and Tanzania, over-sampling women to comprise 75 per cent of the total respondents in each country.
The company also showcased its "Nokia 808 PureView", which combines a large, high-resolution 41-megapixel sensor, Carl Zeiss optics and Nokia developed pixel over-sampling technology.
The Nokia 808 PureView combines a large, high-resolution 41-megapixel sensor, Carl Zeiss optics and Nokia-developed pixel over-sampling technology.
However, sensitivity and specificity estimates were not corrected for the verification bias introduced by over-sampling claims with a diagnosis of respiratory infection relative to claims without such a diagnosis (i.
Furthermore, this paper presents a low-distortion swing suppression SDM [9, 10] which is highly suitable for wideband applications This architecture has reduced sensitivity to opamp non-linearities and the technique is effective for very low over-sampling ratios (OSRs) where the ADCs are increasingly sensitive to circuit imperfections and require high-quality analogue components.
In absence of such a rule-of-thumb, samplers have previously under-estimated the required sample size for samples with large fish, while over-sampling small fish of the same species.
A random sample of 3,261 undergraduate students, which was about 10% of the student population, with an over-sampling of Non-White and rural students, was recruited to participate in the study.
Among some patient segments, up to 50% of lack of persistency can be traced to message deficiencies and over-sampling.
Because over-sampling from a single state may bias the results of a national membership study, we compared the responses of social workers selected from the national (n = 153) and state chapter (n = 164) sampling frames on each of six demographic or professional variables (age, gender, race, years of professional experience, professional setting, and professional function) and on their total scores for the ATL and ATG, the measures of interest in this methodological study.
With this approach, the converter over-sampling ratio is precisely varied to achieve the proper reference clock phase relationship, preventing interface jitter from degrading the conversion.