Digital Signal Processing | 8. IIR Filters: Simple Design Example by Pavan | Learn Smarter
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8. IIR Filters: Simple Design Example

The chapter details the design of a low-pass IIR filter using two methods: the Impulse Invariant Method and the Bilinear Transform Method. It explains how to derive the z-domain transfer function from an analog filter and describes the implementation of the designed filter using Python. Key points include the analysis of frequency response and filter characteristics, emphasizing the practical applications of digital filter design methods in signal processing.

Sections

  • 8

    Iir Filters: Simple Design Example

    This section presents a straightforward design example of a low-pass Infinite Impulse Response (IIR) filter using two methods: the Impulse Invariant Method and the Bilinear Transform Method.

    Learning Practice

  • 8.1

    Introduction

    This section introduces the design of an IIR low-pass filter, explaining the significance of the Impulse Invariant Method and the Bilinear Transform Method in digital signal processing.

    Learning Practice

  • 8.2

    Problem Statement

    This section outlines the goals for designing a simple low-pass IIR filter with specified parameters.

    Learning Practice

  • 8.3

    Step 1: Design Analog Low-Pass Filter

    This section details the process of designing an analog low-pass filter using the first-order low-pass filter transfer function.

    Learning Practice

  • 8.4

    Step 2: Apply The Impulse Invariant Method

    This section covers the application of the Impulse Invariant Method for converting an analog filter design into a digital filter.

    Learning Practice

  • 8.5

    Step 3: Apply The Bilinear Transform Method

    This section covers the application of the Bilinear Transform Method to convert an analog low-pass filter design into its digital equivalent.

    Learning Practice

  • 8.9

    Conclusion

    This chapter concludes with insights on designing a low-pass IIR filter using two methods, emphasizing their respective advantages.

    Learning Practice

References

eeoe-dsp-8.pdf

Class Notes

Memorization

What we have learnt

  • IIR filters are essential f...
  • Two common methods for desi...
  • The performance of a filter...

Final Test

Revision Tests