June 2017
Beginner to intermediate
432 pages
12h 25m
English
Content preview from Digital Signal Processing 101, 2nd EditionBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Chapter 3
Sampling, Aliasing, and Quantization
Abstract
This chapter reviews the sampling of a signal and its conversion from the analog to the digital domain. Analog to digital converter measures the signal at rapid intervals is called samples, which outputs a digital signal proportional to the amplitude of an analog signal. The chapter throws light on sampling at low and high frequencies, the effects of revolution with time. Nyquist sampling rule is discussed in detail which leads to the elements of quantization. The effect of noise in increasing or decreasing the signal has also been discussed along with the concept of decibels. Decibel is a signal-to-power ratio and expressed logarithmically, which allows chains of circuits to process it. The ...
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