
Using Euler’s Formula to Derive Sine and Cosine posted on November 24, 2021
Windowing Function Gain Normalization posted on January 1, 2025
Half Band Filter Design: Exceptional Filtering Efficiency! posted on September 27, 2021
What is Power Spectral Density (PSD)? posted on February 1, 2024
Comb Filter Introduction and Analysis posted on March 1, 2023
Designing FIR Filter Gain posted on February 23, 2022
Barker Code Auto-Correlation Properties posted on March 1, 2024
Cross Correlation Explained With Real Signals posted on December 1, 2021
Efficient Real to Complex Conversion with a Half Band Filter posted on December 15, 2021
Bandwidth of a Moving Average Filter posted on August 3, 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.