
Introduction to Interpolation and Upsampling posted on September 1, 2022
Efficient Real to Complex Conversion with a Half Band Filter posted on December 15, 2021
Barker Code Auto-Correlation Properties posted on March 1, 2024
Writing an eBook for Amazon Kindle with LaTeX on Linux posted on April 27, 2022
Windowing Function Gain Normalization posted on January 1, 2025
Fourier Transform Pairs of Conjugation and Time Reversal posted on November 17, 2021
Time Invariant and Time Varying Filters posted on September 3, 2021
Central Limit Theorem: Fact or Fiction? posted on August 30, 2021
New GNU Radio Beginner Tutorials! posted on February 2, 2022
Cross Correlation Explained With Real Signals posted on December 1, 2021








![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.