
Cross Correlation Explained With Real Signals posted on December 1, 2021
Derivative Filter Impulse Response Derivation posted on November 24, 2021
Single Pole IIR Filter: Substitute for Moving Average Filter posted on August 10, 2022
Designing an FIR High Pass Filter with Remez posted on September 23, 2021
Introduction to Interpolation and Upsampling posted on September 1, 2022
ADC Saturation: Why More Gain Isn’t Always Better posted on May 18, 2022
Bartlett Method Power Spectral Density (PSD) Signal Estimates posted on April 1, 2024
Investing Time Into Younger Engineers posted on October 1, 2023
Power and Energy in Discrete-Time Signals posted on December 1, 2023
Half Band Filter Design Function in Python posted on December 8, 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.