Questions tagged [square]

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Fourier coefficients of discrete difference of a square wave

I have a discrete square wave $f(t)$ where $t \in \mathbb{N}$, of amplitude $A$, period $T$ and duty cycle $1/T$ $$ f(t) = \left\{\begin{matrix} A, & \mathrm{if}\;t=Tn\\ 0, & \mathrm{if}\;t\...
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3answers
300 views

DFT and perfect reconstruction of a square wave on a digital computer

I know that in theory, when reconstructing a square wave from its Fourier coefficients, unless we have an infinite amount of them, the resulting reconstruction will have Gibbs ringing artifacts due to ...
0
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0answers
161 views

How can I generate a time domain square pulse that relies on frequency and not zero centered at MATLAB?

I want to create a square pulse, then use FFT on it. However, this code does not relies on central frequency to generate a pulse, and it is centered at 0 in time and frequency. ...
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1answer
42 views

Confusing regarding triangular wave vs square wave?

I am reading signal processing first by Mcclellan. In chapter 3, I came across the term "discontinous" as shown underlined in attached photo. Apparently "discontinuous" means having a gap/break but ...
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2answers
165 views

anti-alias filter of square pulses

I'm trying to determine whether or not an anti-alias filter is needed for sampling square waves. The goal is to sample square wave pulses from a video detector with an ADC, do some time-domain digital ...