October 2003
Intermediate to advanced
304 pages
7h 46m
English
Content preview from Practical Digital Signal Processing
Become 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,
Start your free trial
1
Introduction
Digital signal processing (DSP) is a field which is primarily technology driven. It started from around mid 1960s when digital computers and digital circuitry became fast enough to process large amounts of data efficiently.
When the term ‘digital’ is used, often it loosely refers to a finite set of distinct values. This is in contrast to ‘analog’, which refers to a continuous range of values. In digital signal processing we are concerned with the processing of signals which are discrete in time (sampled) and in most cases, discrete in amplitude (quantized) as well. In other words, we are primarily dealing with data sequences – sequences of numbers.
Such discrete (or digital) signals may arise in one of the following two distinct ...