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Half Band Filter Design: Exceptional Filtering Efficiency! posted on September 27, 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
What is Power Spectral Density (PSD)? posted on February 1, 2024
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
Why are Filters used in DSP? posted on January 26, 2022
Single Pole IIR Filter Frequency Response posted on July 6, 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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