
Comb Filter Introduction and Analysis posted on March 1, 2023
Cross Correlation Explained With Real Signals posted on December 1, 2021
Using Euler’s Formula to Derive Sine and Cosine posted on November 24, 2021
Deriving the Ideal Low Pass Filter (LPF) posted on October 1, 2022
Half Band Filter Design: Exceptional Filtering Efficiency! posted on September 27, 2021
Designing an FIR High Pass Filter with Remez posted on September 23, 2021
Fourier Transform Convolution Property Derivation posted on November 17, 2021
Cross Correlation: Explaining Time Lags posted on January 12, 2022
Derivative Filter Impulse Response Derivation posted on November 24, 2021
Square Root Raised Cosine Filter in Python posted on November 10, 2021








![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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