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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...
meer dan 7 jaar ago | 1
| accepted
Question
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...
meer dan 7 jaar ago | 2 answers | 0
2
answersQuestion
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 ...
ongeveer 10 jaar ago | 1 answer | 0
1
answerQuestion
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...
meer dan 11 jaar ago | 0 answers | 0
0
answersQuestion
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...
meer dan 12 jaar ago | 0 answers | 0
0
answersQuestion
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 ...
meer dan 12 jaar ago | 2 answers | 0
2
answersQuestion
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 ...
meer dan 12 jaar ago | 0 answers | 0
0
answersQuestion
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...
meer dan 12 jaar ago | 1 answer | 0
