
Polyphase Half Band Filter for Decimation by 2 posted on September 29, 2021
Half Band Filter Design: Exceptional Filtering Efficiency! posted on September 27, 2021
Why an FIR Filter Should Have an Odd Length posted on December 29, 2021
Folding a Polyphase Half Band Filter: Lemon Squeezer Style posted on October 6, 2021
Bartlett (Triangular) Window Analysis With Python Code posted on July 1, 2023
The Wisdom of Conan O’Brien posted on September 25, 2021
Windowing Functions for Better Spectral Analysis posted on August 1, 2023
Oppenheim DSP Lectures YouTube Video Playlist posted on March 23, 2022
Deriving the Ideal Low Pass Filter (LPF) posted on October 1, 2022
Should I Get a Masters Degree? posted on December 1, 2024








![A BPSK signal s[n], real Gaussian noise w[n], and the received signal x[n] = s[n] + w[n] for SNR = 20 dB](https://www.wavewalkerdsp.com/wp-content/uploads/2023/12/HowToComputeSignalToNoiseRatioSNRInSimulation_signalNoiseTimeDomain-300x240.png)
The third edition of DSP for Beginners: Simple Explanations for Complex Numbers! Includes a new chapter on sampling.