
Complex Frequency Shifting in Discrete Time posted on January 1, 2023
Fourier Transform Pairs of Conjugation and Time Reversal posted on November 17, 2021
Phase, Frequency and Negative Frequency in Complex Sinusoids posted on October 19, 2021
The Unit Circle: The Field of Play for the Game of DSP posted on October 23, 2021
Single Pole IIR Filter Frequency Response posted on July 6, 2022
The Almanack of Naval Ravikant: Buy The Book Now! posted on January 12, 2022
Square Root Raised Cosine Filter in Python posted on November 10, 2021
Aliasing, Sampling and Spinning Car Tires posted on November 10, 2021
Introduction to Interpolation and Upsampling posted on September 1, 2022
Barker Code Auto-Correlation Properties posted on March 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.