
Designing FIR Filter Gain posted on February 23, 2022
Polyphase Half Band Filter for Decimation by 2 posted on September 29, 2021
Calculate Signal to Noise Ratio (SNR) in Python Simulation posted on July 1, 2024
Half Band Filter Design: Exceptional Filtering Efficiency! posted on September 27, 2021
Aliasing, Sampling and Spinning Car Tires posted on November 10, 2021
Building a PSK and QAM Modulator in Python posted on June 8, 2022
Using Euler’s Formula to Derive Sine and Cosine posted on November 24, 2021
Windowing Function Gain Normalization posted on January 1, 2025
What is Power Spectral Density (PSD)? posted on February 1, 2024
Installing GNU Radio and B200 mini SDR posted on November 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.