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| 9939A资料 | |
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9939A PDF Download |
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File Size : 116 KB
Manufacturer:N/A Description:where ä(t-nô) is a dirac delta distribution, f(t) is the input signal and fS(n) is the sampled function. In practice the sampling event is somewhat different, the instantaneous sampling is replaced by an integration over a small period of time, and there is uncertainty in the actual instant at which the sample is taken. These two non- idealities: the finite sampling time and the uncertainty of the sampling instant can be accounted for by replacing the delta distribution by another distribution Ø(t). Ø(t) will be an ordinary, continuous function of time which includes a random variable: æ to denote the uncertainty in sampling instant. æ will not be explicitly written but it is assumed that Ø(t) is Ø(t+æ). æ represents the uncertainty in the sampling instant or aperture jitter and is a random variable with a mean value of 0. The RMS value of æ is what will be specified as aperture jitter. The result of a sampling operation may now be written as: |
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| 1PCS | 100PCS | 1K | 10K | ||
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型 号：9939A 厂 家：N/A 封 装：SOP-8 批 号：07+ 数 量：1309 说 明：100%真实库存，原装，部分现货 |
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运 费： 所在地：深圳 新旧程度： |
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