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What is Power Spectral Density (PSD)? posted on February 1, 2024
Building a PSK and QAM Modulator in Python posted on June 8, 2022
Deriving the Ideal Low Pass Filter (LPF) posted on October 1, 2022
The DSP Family Tree: Grow Your Career posted on November 17, 2021
Square Root Raised Cosine Filter in Python posted on November 10, 2021
Power and Energy in Discrete-Time Signals posted on December 1, 2023








![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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