October 2013
Intermediate to advanced
672 pages
21h 34m
English
Content preview from Digital Signal Processing: A Practical Guide for Engineers and Scientists
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CHAPTER 21
Filter Comparison
Decisions, decisions, decisions! With all these filters to choose from, how do you know which to use? This chapter is a head-to-head competition between filters; we’ll select champions from each side and let them fight it out. In the first match, digital filters are pitted against analog filters to see which technology is best. In the second round, the windowed-sinc is matched against the Chebyshev to find the king of the frequency domain filters. In the final battle, the moving average fights the single pole filter for the time domain championship. Enough talk; let the competition begin!
Match #1: Analog vs. Digital Filters
Most digital signals originate in analog electronics. If the signal needs to be filtered, ...