Answered
Bifurcation Diagram
Hi Pallav, There are several issues with the code that you posted. Some of these problems are syntax errors, some are non-stan...

14 years ago | 7

| accepted

Answered
Matlab Help on for loops
No need for a loop. Please try the following: C = (0.1+(x.*(y+2))); Notice the use of the |.*| operator, which signifies e...

14 years ago | 0

Answered
Get JUST Sampling Rate
Please try the following: filename = 'myfile.wav'; N = 1; [ ~, Fs ] = wavread(filename,N); For more information: ...

14 years ago | 0

Answered
Help with for loop
Two suggestions: 1. Pre-allocate a single variable as a two-dimensional array of adequate size to store all of the data you wil...

14 years ago | 0

Answered
PWELCH vs PSD
Honglei is correct. I created a simple test script to compare the two, taking the scaling factor into account. Please try the ...

14 years ago | 1

Answered
fftshift of an image
Hi Joseph, Walter is correct. A single line or line segment, as in the linked image, contains an infinite number of frequencie...

14 years ago | 0

Answered
Simulink Matlab Function
Please include the following line of code: coder.extrinsic('pause'); in the function before the first call to the |paus...

14 years ago | 0

Answered
Matlab Fixed Point - Suggesting Fraction length larger than Word Length?
Hi Walter, Please check the following links: * <http://www.mathworks.com/help/toolbox/simulink/slref/fixdt.html> * <http://www...

14 years ago | 1

Answered
Matlab Fixed Point - Suggesting Fraction length larger than Word Length?
The fraction length does not _have_ to be shorter than the word length if you allow for (implicit) leading zeros. So if it is s...

14 years ago | 3

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Answered
sound sample too short to see higher frequencies?
Hi Chris, What is the value of the sampling rate |fs| (in samples per second) as returned in the first line of code? [x fs]...

14 years ago | 0

Answered
matrix multiplication
Using |*| by itself will perform matrix multiplication, whereas using |.*| will perform element-by-element multiplication. * F...

14 years ago | 1

Answered
2D FFT and the frequency or scale from a 2D spatial series
Please review the following questions: * <http://www.mathworks.com/matlabcentral/answers/13896> * <http://www.mathworks.com/mat...

14 years ago | 0

Answered
matrix multiplication
Please try the following: [M,N] = size(V); [P,Q] = size(U'); if N==P fprintf('ok\n\n'); else fprintf('...

14 years ago | 1

Answered
setting up a step function
>> doc floor

14 years ago | 0

Answered
Display Log scale on y axis of graph
>> doc semilogy

14 years ago | 1

Answered
Rotate image about a specified pixel coordinate
I think you can accomplish what you want by following a two-step process. First, rotate the image through the desired angle. ...

14 years ago | 0

Answered
Expand Array
>> doc repmat

14 years ago | 0

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Answered
Object oriented programming in MATLAB
I would recommend Simulink. Most of what you are trying to model is already available in Simulink and add-on tools SimScape, Si...

14 years ago | 0

Answered
Radiation pattern of circular patch antenna
Do you own or have access to the Phased Array System Toolbox?

14 years ago | 0

Answered
functions to combine two hexadecimal numbers
y = desired - actual; h2 = dec2hex(x,2); h4 = dec2hex(y,4); out = [ 'd' h2 h4 ];

14 years ago | 0

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Answered
functions to combine two hexadecimal numbers
>> doc dec2hex >> doc hex2dec

14 years ago | 0

Answered
FFT in Matlab and computation of mean frequency
Please try searching MATLAB Answers. This question has been asked and answered multiple times: <http://www.mathworks.com/m...

14 years ago | 0

Answered
plz help.... ifft of 1 / (1 - fft(g(t)) )
Hi J J, I don't think I can help you. Maybe someone else can. Best of luck, Rick

14 years ago | 0

Answered
How to model and plot a simple economy in which recessions, when they occur, are likely to be 'persistent'?
Maybe you can try something like the following: N = 100; % number of periods to simulate y = zeros(...

14 years ago | 0

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Answered
plz help.... ifft of 1 / (1 - fft(g(t)) )
Hi J J, I still do not understand what this operation represents either mathematically or biologically. Can you please give ...

14 years ago | 0

Answered
Scaling the FFT and the IFFT
*Does scaling matter?* In most situations, scaling is really not all that important. The overall shape of the spectrum matters ...

14 years ago | 9

| accepted

Question

Scaling the FFT and the IFFT
What is the correct way to scale results when taking the Fast Fourier Transform (FFT) and/or the Inverse Fast Fourier Transform ...

14 years ago | 9 answers | 6

9

answers

Answered
plz help.... ifft of 1 / (1 - fft(g(t)) )
In most situations, scaling is really not all that important. The overall shape of the spectrum matters much more than the abso...

14 years ago | 1

Answered
plz help.... ifft of 1 / (1 - fft(g(t)) )
Hi J J, I don't know what the issue is just yet, but I have a few suspicions that I am trying to verify. Meanwhile, I have m...

14 years ago | 1

Answered
plz help.... ifft of 1 / (1 - fft(g(t)) )
Hi J J, Can you explain a bit of what this particular math operation is supposed to accomplish? I see that you are taking th...

14 years ago | 0