
Cross Correlation Explained With Real Signals posted on December 1, 2021
DFT Frequency Resolution Explained posted on March 16, 2022
Introduction to Interpolation and Upsampling posted on September 1, 2022
Derivative Filter Impulse Response Derivation posted on November 24, 2021
The Almanack of Naval Ravikant: Buy The Book Now! posted on January 12, 2022
Polyphase Half Band Filter for Decimation by 2 posted on September 29, 2021
Installing GNU Radio and B200 mini SDR posted on November 1, 2023
How Euler’s Formula Relates Triangles, the Unit Circle and Complex Sinusoids posted on September 16, 2021
Discrete Fourier Transform (DFT) of Complex Sinusoid posted on May 1, 2023
Aliasing, Sampling and Spinning Car Tires posted on November 10, 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.