
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
Single Pole IIR Filter: Substitute for Moving Average Filter posted on August 10, 2022
Bandwidth of a Moving Average Filter posted on August 3, 2022
Fourier Transform Pairs of Conjugation and Time Reversal posted on November 17, 2021
Square Root Raised Cosine Filter in Python posted on November 10, 2021
Install and Run LaTeX on macOS posted on January 5, 2022
Deriving the Ideal Low Pass Filter (LPF) posted on October 1, 2022
Engineering Mindset: Be a Stone Carver, not a Brick Mason posted on September 18, 2021
Introduction to Interpolation and Upsampling posted on September 1, 2022








![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)
Now for sale: The third edition of DSP for Beginners: Simple Explanations for Complex Numbers! Includes a new chapter on sampling.
This website participates in the Amazon Associates program. As an Amazon Associate I earn from qualifying purchases.
© 2021-2025 Wave Walker DSP