
Windowing Functions for Better Spectral Analysis posted on August 1, 2023
Building a PSK and QAM Modulator in Python posted on June 8, 2022
DFT Frequency Resolution Explained posted on March 16, 2022
Introduction to Interpolation and Upsampling posted on September 1, 2022
Bandwidth of a Moving Average Filter posted on August 3, 2022
Deriving the Ideal Low Pass Filter (LPF) posted on October 1, 2022
Half Band Filter Design: Exceptional Filtering Efficiency! posted on September 27, 2021
Folding a Polyphase Half Band Filter: Lemon Squeezer Style posted on October 6, 2021
How to Create Additive White Gaussian Noise (AWGN) posted on June 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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