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Deriving the Ideal Low Pass Filter (LPF) posted on October 1, 2022
Product to Sum Trigonometric Identities with Euler’s Formula posted on June 15, 2022
ADC Saturation: Why More Gain Isn’t Always Better posted on May 18, 2022
Calculate Average Signal Power posted on June 1, 2024
Why an FIR Filter Should Have an Odd Length posted on December 29, 2021
Derivative of Sine and Cosine Using Euler’s Formula posted on April 6, 2022
Cross Correlation Explained With Real Signals posted on December 1, 2021
Your Life As a Beautiful Mosaic posted on October 1, 2021
Richard Hamming, Acorns and the Engineering Mindset posted on August 31, 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.