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Derivative Filter Impulse Response Derivation posted on November 24, 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
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
What is Power Spectral Density (PSD)? posted on February 1, 2024
Fourier Transform Pairs of Conjugation and Time Reversal posted on November 17, 2021
Single Pole IIR Filter: Substitute for Moving Average Filter posted on August 10, 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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