
Using Euler’s Formula to Derive Sine and Cosine posted on November 24, 2021
FIR Low Pass Filter Design with Remez posted on September 22, 2021
Deriving the Ideal Low Pass Filter (LPF) posted on October 1, 2022
Writing an eBook for Amazon Kindle with LaTeX on Linux posted on April 27, 2022
What is Power Spectral Density (PSD)? posted on February 1, 2024
Efficient Real to Complex Conversion with a Half Band Filter posted on December 15, 2021
Building a PSK and QAM Modulator in Python posted on June 8, 2022
Oppenheim DSP Lectures YouTube Video Playlist posted on March 23, 2022
Introduction to Interpolation and Upsampling posted on September 1, 2022
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)
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