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 1
Numerical Representation
Abstract
This chapter deals with the issues of numerical representation of data in a digital signal processing. As all digital devices operate using bits, numerical values must be converted into a value representable using bits. Fixed point representation is most common, where numerical values are mapped into a field of bits covering a range of integer values, or alternately, a set of fractional values from −1 to 1. A more complex alternative is floating point that is similar to scientific notation. In this case, a numerical value is represented using a mantissa and exponent, along with a sign bit. This has the advantage of being able to cover a much wider range of numbers, both very large and very small.
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