Practice Introduction - 8.1 | 8. IIR Filters: Simple Design Example | Digital Signal Processing
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8.1 - Introduction

Learning

Practice Questions

Test your understanding with targeted questions related to the topic.

Question 1

Easy

What does IIR stand for?

πŸ’‘ Hint: Think about what 'I' in IIR could mean.

Question 2

Easy

What is a low-pass filter?

πŸ’‘ Hint: Imagine water filtering through a screen β€” what gets through?

Practice 4 more questions and get performance evaluation

Interactive Quizzes

Engage in quick quizzes to reinforce what you've learned and check your comprehension.

Question 1

What is the primary use of IIR filters?

  • Speed
  • Efficiency
  • Cost
  • Space

πŸ’‘ Hint: Consider their use in processing power.

Question 2

True or False: The Bilinear Transform Method is used to preserve time-domain characteristics.

  • True
  • False

πŸ’‘ Hint: Remember which method focuses on what.

Solve 1 more question and get performance evaluation

Challenge Problems

Push your limits with challenges.

Question 1

Using a sampling frequency of 20 Hz, recalculate the time constant for an IIR filter designed with a cutoff frequency of 2 Hz. Show the steps.

πŸ’‘ Hint: Remember the relationship between time constant and cutoff frequency!

Question 2

Analyze a scenario where a low-pass filter may introduce phase distortion in an audio application. How would you mitigate this?

πŸ’‘ Hint: Think about how different filter types handle phase.

Challenge and get performance evaluation