Wave Walker DSP

DSP Algorithms for RF Systems

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Half Band Filter Design: Exceptional Filtering Efficiency! posted on September 27, 2021
Polyphase Half Band Filter for Decimation by 2 posted on September 29, 2021
Why an FIR Filter Should Have an Odd Length posted on December 29, 2021

New Book!

The third edition of DSP for Beginners: Simple Explanations for Complex Numbers! Includes a new chapter on sampling.

DSP for Beginners cover

Euler's formula

Negative frequency in complex sinusoids

Complex sinusoids on the complex plane

Aliasing

Phase relationship between sine and cosine

Oppenheim DSP Lectures YouTube Video Playlist

March 23, 2022

I recently came across a playlist on YouTube of Alan Oppenheim’s DSP lectures from 1975. Here’s the link to the playlist. Enjoy!

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