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Power and Energy in Discrete-Time Signals
December 1, 2023

Why Does the DFT Need Windowing Functions?
September 1, 2023
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ADC Saturation: Why More Gain Isn’t Always Better
May 18, 2022
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Derivative of Sine and Cosine Using Euler’s Formula
April 6, 2022
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The Brand New Wave Walker DSP eBook!
March 21, 2022
![Figure 3: The complex sinusoid e(j2 pi (2/4) n) only contains energy at X[2].](https://www.wavewalkerdsp.com/wp-content/uploads/2022/01/DFTFrequencyResolutionExplained_4DFT_Freq2-150x150.png)
DFT Frequency Resolution Explained
March 16, 2022
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Can the Fourier Transform Magnitude Be Negative?
February 16, 2022
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Minimizing Filter Length: Explaining Why
February 9, 2022
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Why are Filters used in DSP?
January 26, 2022

Why an FIR Filter Should Have an Odd Length
December 29, 2021