
Barker Code Auto-Correlation Properties posted on March 1, 2024
FIR Low Pass Filter Design with Remez posted on September 22, 2021
Trigonometric Identity: sin(x)^2 + cos(x)^2 = 1 posted on March 9, 2022
Using Euler’s Formula to Derive Sine and Cosine posted on November 24, 2021
Introduction to Interpolation and Upsampling posted on September 1, 2022
Cross Correlation Explained With Real Signals posted on December 1, 2021
Cyclostationary and Stationary Processes with Examples posted on April 20, 2022
Installing GNU Radio and B200 mini SDR posted on November 1, 2023
How to Count in Binary Numbers posted on August 1, 2024
Square Root Raised Cosine Filter in Python 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.