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Anything related to Fourier series, Fourier transform and similar mathematical tools used to analyze the frequency content of a signal.
0
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1
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How to apply fourier transform to \$0.5^n u(n)\$
I have tried using this function \$f_1*f_2 = F_1 * F_2\$, where I'm assuming this means multiplication of two functions is equal to the convolution of their fourier transforms. … So I can calculate the fourier transorm of \$u(n)\$ fine. It is \$\pi\delta(\omega) + 1/(j\omega))\$. However, I cannot for the life of me figure out \$0.5^n\$. …
4
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1
answer
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Nyquist sampling rate with real and imaginary aliasing
However, the fourier transform of this function is \$F(\omega) = \pi(\delta(\omega+6) + \delta(\omega-6) + i\delta(\omega-5) - i\delta(\omega+5)\$. …
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2
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What is the bandwidth of an imaginary convolution?
So when I take the Fourier Transform, I can rewrite the equation as such: \$F(\omega) \leftrightarrow F_1 * F_2\$. Easy so far. … The graph of the transform is
fourier transform [sinc^2(3t)sin(100t)]
(also on wolfram-alpha) …