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Half Band Filter Design: Exceptional Filtering Efficiency! posted on September 27, 2021
Building a PSK and QAM Modulator in Python posted on June 8, 2022
Square Root Raised Cosine Filter in Python posted on November 10, 2021
Introduction to Interpolation and Upsampling posted on September 1, 2022
Calculate Signal to Noise Ratio (SNR) in Python Simulation posted on July 1, 2024
DFT Frequency Resolution Explained posted on March 16, 2022
Power and Energy in Discrete-Time Signals posted on December 1, 2023
Polyphase Half Band Filter for Decimation by 2 posted on September 29, 2021
Windowing Function Gain Normalization posted on January 1, 2025








![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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