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Single Pole IIR Filter: Substitute for Moving Average Filter posted on August 10, 2022
GNU Radio Tutorials: Half-Way Review posted on January 13, 2022
Trigonometric Identity: sin(x)^2 + cos(x)^2 = 1 posted on March 9, 2022
To Give Better Briefings, Use More Images posted on May 11, 2022
How Euler’s Formula Relates Triangles, the Unit Circle and Complex Sinusoids posted on September 16, 2021
Using Euler’s Formula to Derive Sine and Cosine posted on November 24, 2021
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
Fourier Transform Pairs of Conjugation and Time Reversal posted on November 17, 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.