
Using Euler’s Formula to Derive Sine and Cosine posted on November 24, 2021
Polyphase Half Band Filter for Decimation by 2 posted on September 29, 2021
Why Does the DFT Need Windowing Functions? posted on September 1, 2023
Single Pole IIR Filter: Substitute for Moving Average Filter posted on August 10, 2022
Efficient Real to Complex Conversion with a Half Band Filter posted on December 15, 2021
Bandwidth of a Moving Average Filter posted on August 3, 2022
FIR Low Pass Filter Design with Remez posted on September 22, 2021
Introduction to Interpolation and Upsampling posted on September 1, 2022
Building a PSK and QAM Modulator in Python posted on June 8, 2022
Barker Code Auto-Correlation Properties posted on March 1, 2024








![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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