
Bandwidth of a Moving Average Filter posted on August 3, 2022
FIR Low Pass Filter Design with Remez posted on September 22, 2021
Introduction to Interpolation and Upsampling posted on September 1, 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
The Almanack of Naval Ravikant: Buy The Book Now! posted on January 12, 2022
Cross Correlation Explained With Real Signals posted on December 1, 2021
Explaining Logarithms, Exponents and Base Numbers With Plots posted on July 27, 2022
Complex Frequency Shifting in Discrete Time posted on January 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.