
DFT Frequency Resolution Explained posted on March 16, 2022
Introduction to Interpolation and Upsampling posted on September 1, 2022
Deriving the Ideal Low Pass Filter (LPF) posted on October 1, 2022
Calculate Signal to Noise Ratio (SNR) in Python Simulation posted on July 1, 2024
FIR Low Pass Filter Design with Remez posted on September 22, 2021
Complex Frequency Shifting in Discrete Time posted on January 1, 2023
Time Invariant and Time Varying Filters posted on September 3, 2021
Windowing Functions for Better Spectral Analysis posted on August 1, 2023
Bandwidth of a Moving Average Filter posted on August 3, 2022
Oppenheim DSP Lectures YouTube Video Playlist posted on March 23, 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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