
Cross Correlation Explained With Real Signals posted on December 1, 2021
Investing Time Into Younger Engineers posted on October 1, 2023
Half Band Filter Design: Exceptional Filtering Efficiency! posted on September 27, 2021
FIR Low Pass Filter Design with Remez posted on September 22, 2021
Calculate Signal to Noise Ratio (SNR) in Python Simulation posted on July 1, 2024
Power and Energy in Discrete-Time Signals posted on December 1, 2023
Designing FIR Filter Gain posted on February 23, 2022
Folding a Polyphase Half Band Filter: Lemon Squeezer Style posted on October 6, 2021
Building a PSK and QAM Modulator in Python posted on June 8, 2022
Single Pole IIR Filter Frequency Response posted on July 6, 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.