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Why frequency domain signal is not reconstructed using ifft followed by fft?
Ok, figured it out: ifftshift (or fftshift) is only for plotting, so before doing the fft (or ifft) the complex function has to...
Why frequency domain signal is not reconstructed using ifft followed by fft?
Ok, figured it out: ifftshift (or fftshift) is only for plotting, so before doing the fft (or ifft) the complex function has to...
7 years 前 | 1
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Why frequency domain signal is not reconstructed using ifft followed by fft?
I was checking if I start with a frequency domain signal, find its inverse Fourier transform (using ifft), then get the function...
7 years 前 | 2 个回答 | 0
2
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How can I use loop for summation of cosines?
Hi: I was trying to take the following sum, y = sum over f's (harmonics) of cos(2*pi*f*t) using this loop: t = -1:.001:1; f ...
10 years 前 | 1 个回答 | 0
1
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Problem with Inverse Fourier Transform
I was trying to generate a time domain pulse from its frequency domain spectrum; I am unable to produce it correctly: the time d...
11 years 前 | 0 个回答 | 0
0
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How to define y = f(w)*cosine(w*t) with different ranges for w & t?
Take a function: y = f(w)*cosine(w*t), with t = 0:1:1000 and f(w) is a Gaussian (or some other) distribution of w with w = 10000...
12 years 前 | 0 个回答 | 0
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Matrix of functions of two variables
I want to generate a matrix whose elements are functions of two variables, say F=f(t1).*f(t2), where t1 varies along row and t2 ...
12 years 前 | 2 个回答 | 0
2
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Re-sizing x-/y-axis of a contour plot (x-/y- vs z)
Hi, While plotting a contour plot (x-/y- vs z) for equal range of x & y, I could not make the size of the plot (or the image ...
12 years 前 | 0 个回答 | 0
0
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Loading multiple .dat files
Hi, I have a set of data consisting N no of files where each file is a column of N no of rows; all I need is to load the enti...
12 years 前 | 1 个回答 | 0
