
How Euler’s Formula Relates Triangles, the Unit Circle and Complex Sinusoids posted on September 16, 2021
Polyphase Half Band Filter for Decimation by 2 posted on September 29, 2021
Designing an FIR High Pass Filter with Remez posted on September 23, 2021
Your Life As a Beautiful Mosaic posted on October 1, 2021
Calculate Average Signal Power posted on June 1, 2024
Introduction to Interpolation and Upsampling posted on September 1, 2022
Barker Code Auto-Correlation Properties posted on March 1, 2024
Product to Sum Trigonometric Identities with Euler’s Formula posted on June 15, 2022
Comb Filter Introduction and Analysis posted on March 1, 2023
FIR Low Pass Filter Design with Remez posted on September 22, 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.