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What is Power Spectral Density (PSD)? posted on February 1, 2024
Polyphase Half Band Filter for Decimation by 2 posted on September 29, 2021
Discrete Fourier Transform (DFT) of Complex Sinusoid posted on May 1, 2023
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Designing an FIR Band Pass Filter with Remez posted on September 24, 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.