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Single Pole IIR Filter: Substitute for Moving Average Filter posted on August 10, 2022
Polyphase Half Band Filter for Decimation by 2 posted on September 29, 2021
Introduction to Interpolation and Upsampling posted on September 1, 2022
Complex Frequency Shifting in Discrete Time posted on January 1, 2023
Windowing Functions for Better Spectral Analysis posted on August 1, 2023
Engineering Mindset: Be a Stone Carver, not a Brick Mason posted on September 18, 2021
Power and Energy in Discrete-Time Signals posted on December 1, 2023
Calculate Signal to Noise Ratio (SNR) in Python Simulation posted on July 1, 2024
Why are Filters used in DSP? posted on January 26, 2022








![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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