Answered
How to measure the phase difference between two signals in simulink?
Try multiplying the two signals together, and then passing the result through a low pass filter.

13 years ago | 0

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Answered
How do to FFT Analysis to EEG signals Using Matlab
Please try: >> doc fft >> doc fftshift These commands will open the documentation for these two functions. After y...

14 years ago | 0

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Answered
Help with plotting sinusoidal wave
Compare your sampling rate (in samples per second) to the frequency of your sine wave (in hertz or cycles per second). What is ...

14 years ago | 0

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problems with an interval in a for...end
t = (0:dt:tmax)'; N = size(t,1); X = zeros(N,1); X(1) = Xo; ... for k = 2:N ... ... end...

14 years ago | 0

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spectral analysis, frequency spectrum, power spectral density
>> doc freqz

14 years ago | 0

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spectral analysis, frequency spectrum, power spectral density
N = 2000; StartTime = 0; StopTime = 200e-9; dt = (StopTime - StartTime)/N; Fs = 1/dt; dF = Fs/N; ...

14 years ago | 0

Answered
Class project: simple calculator
>> doc input >> doc fprintf >> doc while >> doc cart2pol >> doc pol2cart >> doc sin >> doc cos >>...

14 years ago | 1

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Answered
Specifying range of data from a plot??
xSelect = x(y>=n);

14 years ago | 1

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Answered
declaring variables for codegen
The basic requirement is that you need to specify three characteristics for each input argument of the entry-point functions: ...

14 years ago | 0

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Answered
plot with axis properties from another plot
>> doc copyobj

14 years ago | 0

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How to graph 3-phase voltage using matlab?
Please try: Fs = 8000; dt = 1/Fs; StopTime = 2; t = (0:dt:StopTime-dt)'; N = size(t,1); Fc = 60; ...

14 years ago | 0

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Answered
sine wave plot
Please try: %% Time specifications: Fs = 8000; % samples per second dt = 1/Fs; ...

14 years ago | 36

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Answered
plotting the frequency spectrum
Please try: %% Time specifications: Fs = 100; % samples per second dt = 1/Fs; ...

14 years ago | 26

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Answered
measuring lenght of straight lines
>> doc imtool

14 years ago | 0

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Summing groups of ones
y = cumsum(x); d = x(2:end) - x(1:end-1); k = ( d == -1 ); z = y(k);

14 years ago | 1

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measuring a triangle
>> doc imtool

14 years ago | 0

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How to add harmonics to a signal ? Help please !!
Does the following function do what you want? function y = harmonic(x,k) % assumes that x is a column vector ...

14 years ago | 0

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Answered
How to sort the column of matrix according to amount of NaN for each column?
n = sum(isnan(A)); B = transpose([ n ; A ]); C = sortrows(B); R = transpose(C(:,2:end));

14 years ago | 0

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How to sort the column of matrix according to amount of NaN for each column?
n = sum(isnan(A));

14 years ago | 0

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Answered
Matrix operations without for structure
Please try: M = 60e3; N = 2; A = rand(M,N); s = rand(N,N); mu = ones(M,1)*mean(A); X = A - mu; ...

14 years ago | 0

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How can I filter the negative value?
B = A.*(A>0); C = A.*(A>0)*100 + A.*(A<0);

14 years ago | 0

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Answered
Subplot - adding alpha-numeric data
>> doc text >> doc title >> doc xlabel >> doc ylabel >> doc uicontrol

14 years ago | 0

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Select an element of variable. HELP.
N = numel(B); x = zeros(N,1); for k = 1:N x(k) = min(abs(A(:) - B(k))); end

14 years ago | 0

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NRZ-4 and NRZ-8
Another function that may help is |reshape|.

14 years ago | 0

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NRZ-4 and NRZ-8
You need to convert numbers from a binary representation (base 2) to a decimal representation (base 10). That is why I suggeste...

14 years ago | 0

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NRZ-4 and NRZ-8
*Here is another hint:* Suppose you have a series of randomly generated symbols drawn from the set of integers { 0, 1, 2, 3...

14 years ago | 0

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NRZ-4 and NRZ-8
>> doc bin2dec >> doc stairs

14 years ago | 0

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draw rectangular
# Find the min and max of the x components. # Find the min and max of the y components. # Use these values to specify the four...

14 years ago | 0

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how to f-k filter
The variable |data| should be an array of size _M_ rows by _N_ columns. Each row should represent a different time increment, a...

14 years ago | 0

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Answered
Convert MATLAB code to C++ code
MATLAB Coder does not generate a |main()| function for you. You have to write this function yourself in C or C++ and include it...

14 years ago | 0

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