Answered
How to add the new delayed signal to the PLOT !
Honglei's answer is correct, and it explains why simply adding 2 to an existing signal does not shift the signal in time, but me...

14 years ago | 1

| accepted

Answered
Incorrectly applying low pass filter to discrete data (Modulation)
I am pretty sure that the problem is with this line of code: [num,den] = butter(12, (Fc/Fs), 'low','s' ) ; There are two is...

14 years ago | 0

| accepted

Answered
Incorrectly applying low pass filter to discrete data (Modulation)
Hi Rudolf, Before looking at the filtering part, there are a number of issues in how the code sets up the test signals. In pa...

14 years ago | 0

Answered
how to generate data rates in matlab
Before jumping into a |for| loop, you should consider whether it is possible to _vectorize_ this code. MATLAB is really good at...

14 years ago | 0

Answered
3 - d Graph in Matlab
You may want to consider the |line| function. For more information: >> doc line HTH. Rick

14 years ago | 0

Answered
How to find wavelength of a wave in an image
Hi Paul, I don't think I can help you. Maybe someone else can. Best of luck, Rick

14 years ago | 1

Answered
How to find wavelength of a wave in an image
I have updated my previous answer to include a method for addressing Question (1).

14 years ago | 0

Answered
How to find wavelength of a wave in an image
To answer Question (2): Once you find |Fx| and |Fy|, you can use the Pythagorean Theorem to find the overall frequency |F|: ...

14 years ago | 0

Answered
TUTORIAL: how to ask a question (on Answers) and get a fast answer
*DO:* * Please include which release of MATLAB you are using, e.g. R12, R14, R2008b, R2011a, etc. * Please make sure it is clea...

14 years ago | 11

Answered
Generating multiple entities per sample time with different attribute values
# What release of MATLAB are you using? # Can you please post one or more screenshots of your Simulink/SimEvents model, and you...

14 years ago | 0

Answered
Log Normal Distribution Fitting
Do you have access to the _Statistics Toolbox_? If so, please try the |lognfit| function. For more information (including a si...

14 years ago | 0

Answered
autocorrelate rows of matrix without using a for loop
Is the issue here that you really need to make this code run faster, or is it that you are just hoping to find a more elegant (e...

14 years ago | 0

Answered
autocorrelate rows of matrix without using a for loop
Also, please check the documentation for |xcorr|: >> doc xcorr It looks like you may be able to accomplish what you wan...

14 years ago | 0

Answered
autocorrelate rows of matrix without using a for loop
Hi Cody, Can you please answer the following questions? # Did you pre-allocate the output array |b| ? # Also, have you consi...

14 years ago | 0

Answered
Signal power ....A confusion
In this specific case, the probabilities of the outcomes do not actually matter; the only reason that I asked is that the proba...

14 years ago | 0

| accepted

Answered
Signal power ....A confusion
# What is the amplitude of the carrier? # What is the probability of each outcome {+1 versus -1} in the data stream?

14 years ago | 0

Answered
MATLAB code to C++ conversion
I would recommend trying a three-phase approach: # Generate code assuming _fixed_ size arrays for all variables. Choose a size...

14 years ago | 0

Answered
Moduletion and de moduletion
Before modulation, you need to make sure that the sampling rate (in samples per second) of the source signal is greater than twi...

14 years ago | 0

Answered
MATLAB code to C++ conversion
Can you please answer a few questions: # What version of MATLAB (i.e. Rnnnnx) are you using? # Do you have access to Real-...

14 years ago | 0

Answered
fftshift of an image
In order to use the DFT to determine the wavelength of the pattern in the image, you will need one key piece of information: so...

14 years ago | 13

| accepted

Answered
FFT of discrete time domain data
In the following code, I am assuming that |data| is predefined as a column vector of size |N| x 1. If it is a row vector of siz...

14 years ago | 0

Answered
fftshift of an image
The result of the DFT of an image should also be an image, but the graphs are showing a 1D spectrum. How did you compute the DF...

14 years ago | 0

Answered
Looping past the end of an array - I don't see how?
Have you tried setting a break-point on the offending line of code, and then examining the values of the relevant variables in d...

14 years ago | 0

Answered
Looping past the end of an array - I don't see how?
Big improvement. Thanks!

14 years ago | 0

Answered
Looping past the end of an array - I don't see how?
Please format your code. If you don't know how, please review the following: <http://www.mathworks.com/matlabcentral/answers/h...

14 years ago | 0

Answered
Way to output a matrix or dat file
I am not sure if |csvwrite| will work with strings. You may need to use |xlswrite| instead, or you could try to create your own...

14 years ago | 0

| accepted

Answered
Creating an array of string variables
Please try creating a "cell array" of strings: myList = { 'Red' ; 'Orange' ; 'Yellow' ; 'Green' ; 'Blue' } ; for k = ...

14 years ago | 1

| accepted

Answered
Way to output a matrix or dat file
A third option, if you want very nicely formatted output in the form of an HTML or PDF document, would be to use the |publish| c...

14 years ago | 0

Answered
Way to output a matrix or dat file
Another option is to use |fprintf| to print formatted output to a text file rather than to the Command Window. So, for example:...

14 years ago | 0

Answered
Way to output a matrix or dat file
Hi Chris, There are several different ways to accomplish what you are asking. One option is to export your data to MS Exce...

14 years ago | 0