
Introduction to Interpolation and Upsampling posted on September 1, 2022
Windowing Function Gain Normalization posted on January 1, 2025
Product to Sum Trigonometric Identities with Euler’s Formula posted on June 15, 2022
Fourier Transform Explanation as a Cross-Correlation posted on December 22, 2021
Bartlett (Triangular) Window Analysis With Python Code posted on July 1, 2023
Apollo 13 and Engineering Operations posted on February 1, 2025
How To Install GNU Radio Source Code posted on October 1, 2024
Deriving the Ideal Low Pass Filter (LPF) posted on October 1, 2022
Why Does the DFT Need Windowing Functions? posted on September 1, 2023
How to Create Additive White Gaussian Noise (AWGN) posted on June 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)
The third edition of DSP for Beginners: Simple Explanations for Complex Numbers! Includes a new chapter on sampling.