
Cross Correlation Explained With Real Signals posted on December 1, 2021
ADC Saturation: Why More Gain Isn’t Always Better posted on May 18, 2022
Fourier Transform Explanation as a Cross-Correlation posted on December 22, 2021
Polyphase Half Band Filter for Decimation by 2 posted on September 29, 2021
What is Power Spectral Density (PSD)? posted on February 1, 2024
Calculate Signal to Noise Ratio (SNR) in Python Simulation posted on July 1, 2024
Fourier Transform of the Boxcar Window posted on July 13, 2022
Fourier Transform Pairs of Conjugation and Time Reversal posted on November 17, 2021
Introduction to Interpolation and Upsampling posted on September 1, 2022
Why Does the DFT Need Windowing Functions? posted on September 1, 2023








![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.