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Half Band Filter Design: Exceptional Filtering Efficiency! posted on September 27, 2021
Windowing Functions for Better Spectral Analysis posted on August 1, 2023
Fourier Transform Pairs of Conjugation and Time Reversal posted on November 17, 2021
Single Pole IIR Filter Frequency Response posted on July 6, 2022
Polyphase Half Band Filter for Decimation by 2 posted on September 29, 2021
Bartlett (Triangular) Window Analysis With Python Code posted on July 1, 2023
DFT Frequency Resolution Explained posted on March 16, 2022
Square Root Raised Cosine Filter in Python posted on November 10, 2021
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![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)
The third edition of DSP for Beginners: Simple Explanations for Complex Numbers! Includes a new chapter on sampling.