
Building a PSK and QAM Modulator in Python posted on June 8, 2022
Polyphase Half Band Filter for Decimation by 2 posted on September 29, 2021
Deriving the Ideal Low Pass Filter (LPF) posted on October 1, 2022
Comb Filter Introduction and Analysis posted on March 1, 2023
Complex Frequency Shifting in Continuous Time posted on December 1, 2022
The Almanack of Naval Ravikant: Buy The Book Now! posted on January 12, 2022
Calculate Signal to Noise Ratio (SNR) in Python Simulation posted on July 1, 2024
Great DSP Videos from Professor Kathleen Wage on YouTube posted on May 25, 2022
What is Power Spectral Density (PSD)? posted on February 1, 2024
Half Band Filter Design: Exceptional Filtering Efficiency! posted on September 27, 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.