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Introduction to DSP

IIR filters

Index

This is the fifth module of the BORES Signal Processing DSP course - Introduction to DSP.

It covers the following subjects:

• IIR filter equations
• IIR filter frequency response
• The z transform
• The meaning of z
• z and exponential decay
• Poles and zeroes
• IIR filter design by impulse invariance
• IIR filter design by the bilinear transform
• Direct form I filters
• Direct form II filters
• Transposition theorem and form II filters
• Quantisation in IIR filters
• IIR filter implementation structures
• IIR filter scaling
• Parallel and cascade IIR structures
• Ordering cascade IIR structures

The course is intended for self study over the Internet only. All material is copyright, and you are not permitted to make copies, either for personal use or for teaching purposes.

| Last updated: 4th January 1997 | http://www.bores.com/courses/intro/iir/index.htm

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