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Polyphase Half Band Filter for Decimation by 2 posted on September 29, 2021
Introduction to Interpolation and Upsampling posted on September 1, 2022
Half Band Filter Design Function in Python posted on December 8, 2021
Power and Energy in Discrete-Time Signals posted on December 1, 2023
Why an FIR Filter Should Have an Odd Length posted on December 29, 2021
Cross Correlation Explained With Real Signals posted on December 1, 2021
What is Power Spectral Density (PSD)? posted on February 1, 2024
Self Promotion: Engineer’s Worst Fear (Yikes!) posted on January 19, 2022
Designing an FIR High Pass Filter with Remez posted on September 23, 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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