Wave Walker DSP

DSP Algorithms for RF Systems

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Cross Correlation Explained With Real Signals posted on December 1, 2021
Using Euler’s Formula to Derive Sine and Cosine posted on November 24, 2021
FIR Low Pass Filter Design with Remez posted on September 22, 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

Rodney Dangerfield and DSP

December 15, 2021

I came across this GIF of Rodney Dangerfield and saw the unit circle in the bottom right hand corner:

Always nice to see elements of DSP sprinkled into the real world!

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