Daniel kiracofe
2014 年からアクティブ
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Vibration and Signal processing tutorials at http://www.mechanicalvibration.com
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回答済み
could u give me weiner program to remove audio noise
Did you try typing "Wiener filter matlab" into google first? There are all kinds of examples out there. Why don't you try that ...
could u give me weiner program to remove audio noise
Did you try typing "Wiener filter matlab" into google first? There are all kinds of examples out there. Why don't you try that ...
7年以上 前 | 0
回答済み
Store tensor history into multidimensional array
As far as I am aware, it is not possible to do what you want in matlab. There is no such thing as a 3-dimensional array literal...
Store tensor history into multidimensional array
As far as I am aware, it is not possible to do what you want in matlab. There is no such thing as a 3-dimensional array literal...
7年以上 前 | 0
回答済み
Can you help me out on making the BER vs SNR plot ?
Not 100% sure of the final answer here, but based on your statement that you are only getting 1 star on the graph, I assume that...
Can you help me out on making the BER vs SNR plot ?
Not 100% sure of the final answer here, but based on your statement that you are only getting 1 star on the graph, I assume that...
7年以上 前 | 0
回答済み
retrieving the impulse response of a function using freqz (not impz)
I suspect your problem is that the system you are trying to study is unstable. i.e. the pole lies outside the unit circle, so t...
retrieving the impulse response of a function using freqz (not impz)
I suspect your problem is that the system you are trying to study is unstable. i.e. the pole lies outside the unit circle, so t...
7年以上 前 | 0
回答済み
Faulty result on contour map
Not 100% sure what you mean by "some values are false", but I suspect that you've just transposed x and y axis. Does a = ...
Faulty result on contour map
Not 100% sure what you mean by "some values are false", but I suspect that you've just transposed x and y axis. Does a = ...
7年以上 前 | 0
回答済み
Error with if elseif statements
In matlab, strings are arrays of characters. Two strings with different lengths have different array dimensions. e.g. 'dog'...
Error with if elseif statements
In matlab, strings are arrays of characters. Two strings with different lengths have different array dimensions. e.g. 'dog'...
7年以上 前 | 0
回答済み
How do I set counter = to a value when it is a persistent variable so if i reinitialize it each time through a loop it loses it purpose?
I'm not sure if I understand the question. Here is my guess at what you are asking. If this isn't it, please restate the quest...
How do I set counter = to a value when it is a persistent variable so if i reinitialize it each time through a loop it loses it purpose?
I'm not sure if I understand the question. Here is my guess at what you are asking. If this isn't it, please restate the quest...
7年以上 前 | 0
回答済み
How to use anonymous functions and fsolve to find initial conditions given final conditions (projectile motion)
So it looks like you are integrating an ODE numerically. Starting from a set initial conditions, you are doing a simple time in...
How to use anonymous functions and fsolve to find initial conditions given final conditions (projectile motion)
So it looks like you are integrating an ODE numerically. Starting from a set initial conditions, you are doing a simple time in...
7年以上 前 | 1
回答済み
How to save a huge matrix efficiently?
If you have enough memory and are using a 64 bit version of matlab, using load() to load the entire matrix into memory will be q...
How to save a huge matrix efficiently?
If you have enough memory and are using a 64 bit version of matlab, using load() to load the entire matrix into memory will be q...
7年以上 前 | 0
回答済み
Using interp1 multiple times to find a root : interp1 on a matrix without loops. Using interp1 multiple times for different values of query points without loops.
My first question here would be, are you pre-allocating root? i.e. do you have root = zeros(a,b,c) before your loop? If not, t...
Using interp1 multiple times to find a root : interp1 on a matrix without loops. Using interp1 multiple times for different values of query points without loops.
My first question here would be, are you pre-allocating root? i.e. do you have root = zeros(a,b,c) before your loop? If not, t...
7年以上 前 | 0
回答済み
how to plot a unit step function
Do you want to do this numerically or symbollically? With the symbolic math toolbox, the heaviside() function is a unit step....
how to plot a unit step function
Do you want to do this numerically or symbollically? With the symbolic math toolbox, the heaviside() function is a unit step....
7年以上 前 | 1
| 採用済み
回答済み
The code does not return the unwrapped phase. Why?
Not 100% sure I have the whole answer, but here's part of it. Look at these two lines side by side: %by first sequentially...
The code does not return the unwrapped phase. Why?
Not 100% sure I have the whole answer, but here's part of it. Look at these two lines side by side: %by first sequentially...
7年以上 前 | 1
回答済み
Divide image into 3x3 pixels?
Depends. First, define "small" and "big". Do you mean it's okay for 10x10 but too slow for 1000x1000? Or does big mean 100,00...
Divide image into 3x3 pixels?
Depends. First, define "small" and "big". Do you mean it's okay for 10x10 but too slow for 1000x1000? Or does big mean 100,00...
7年以上 前 | 0
回答済み
how to make table of ip address numbers
strsplit() will split up the strings for you. Then use sprintf() to make the formatting https://www.mathworks.com/help/matla...
how to make table of ip address numbers
strsplit() will split up the strings for you. Then use sprintf() to make the formatting https://www.mathworks.com/help/matla...
7年以上 前 | 0
回答済み
While loop not working
I see two issues with your code: 1) By virtue of the fact that you have "while j <9" at the top, this implies that you expect...
While loop not working
I see two issues with your code: 1) By virtue of the fact that you have "while j <9" at the top, this implies that you expect...
7年以上 前 | 0
回答済み
How to round (or convert) an array to integer?
ceil() should work to round up to the nearest integer
How to round (or convert) an array to integer?
ceil() should work to round up to the nearest integer
7年以上 前 | 1
回答済み
Round to specified decimal number?
this thread looks appropriate: http://www.mathworks.com/matlabcentral/answers/14495-rounding-elements-in-array-to-nearest-0-2...
Round to specified decimal number?
this thread looks appropriate: http://www.mathworks.com/matlabcentral/answers/14495-rounding-elements-in-array-to-nearest-0-2...
7年以上 前 | 0
| 採用済み
回答済み
ploting in for loop
"there is something wrong" is pretty vague, so I'm totally guessing at what your problem is. But this seems like a reasonable gu...
ploting in for loop
"there is something wrong" is pretty vague, so I'm totally guessing at what your problem is. But this seems like a reasonable gu...
7年以上 前 | 0
回答済み
Why do I get this error: A(I): index out of bounds; value 2 out of bound 1 (line 13)
Because the very first time the while statement's condition is checked, n=2, and x is a vector that has 1 element. You are aski...
Why do I get this error: A(I): index out of bounds; value 2 out of bound 1 (line 13)
Because the very first time the while statement's condition is checked, n=2, and x is a vector that has 1 element. You are aski...
7年以上 前 | 0
回答済み
How to determine a frequency that contains 90% of the power of the signal?
1) create a power spectrum (i.e. using the results of fft()). I'm assuming you know how to do this, if not just ask 2) create...
How to determine a frequency that contains 90% of the power of the signal?
1) create a power spectrum (i.e. using the results of fft()). I'm assuming you know how to do this, if not just ask 2) create...
7年以上 前 | 0
| 採用済み
回答済み
sinewave generation:how generatea sine wave
t=0:0.001:1; freq = 10; signal = sin( freq * 2 * pi * t); plot(t, signal);
sinewave generation:how generatea sine wave
t=0:0.001:1; freq = 10; signal = sin( freq * 2 * pi * t); plot(t, signal);
7年以上 前 | 0
| 採用済み
回答済み
HELP with creating matrix for Jacobi and Gauss-Seidel method problem!!
the brute force approach would be something like this. for i = 1:80 for j = 1:80 if (i==j) a(i,j) =...
HELP with creating matrix for Jacobi and Gauss-Seidel method problem!!
the brute force approach would be something like this. for i = 1:80 for j = 1:80 if (i==j) a(i,j) =...
7年以上 前 | 0
回答済み
I want to copy the rows of G1 to G2 in inner for loop but error occurs , please help
the first time through the loops, k = 15. but size(G1) is 11x16. So the first time you are effectively doing G2(o,:) = G1(1...
I want to copy the rows of G1 to G2 in inner for loop but error occurs , please help
the first time through the loops, k = 15. but size(G1) is 11x16. So the first time you are effectively doing G2(o,:) = G1(1...
7年以上 前 | 0
回答済み
simulating a poker game
You've got a good start. Here's a few comments 1) Instead of using randsample() and then finding and removing elements from t...
simulating a poker game
You've got a good start. Here's a few comments 1) Instead of using randsample() and then finding and removing elements from t...
7年以上 前 | 4
| 採用済み
回答済み
How to plot spectrogram in Matlab using one-year length data with the sampling rate of 50 Hz?
if you don't really need 50 Hz resolution, then use decimate() to make the vector length smaller. If you really do need 50 Hz...
How to plot spectrogram in Matlab using one-year length data with the sampling rate of 50 Hz?
if you don't really need 50 Hz resolution, then use decimate() to make the vector length smaller. If you really do need 50 Hz...
7年以上 前 | 0
回答済み
How to use fft2 and find spatial wavenumbers (kx & ky) ?
First, you need to reshape your data so that it is 10000x5x5 instead of 10000x25 ("reshape" command could help here). Then, a...
How to use fft2 and find spatial wavenumbers (kx & ky) ?
First, you need to reshape your data so that it is 10000x5x5 instead of 10000x25 ("reshape" command could help here). Then, a...
7年以上 前 | 1
回答済み
I need to sum the values around the perimeter of a matrix, is there sum function in matlab
For your second sum, instead of sum(A(y,1:1:y)) think you wanted sum(A(x,1:1:y))
I need to sum the values around the perimeter of a matrix, is there sum function in matlab
For your second sum, instead of sum(A(y,1:1:y)) think you wanted sum(A(x,1:1:y))
7年以上 前 | 0
回答済み
Plot double Fourier series in MATLAB
I think your problem is this line A=4*(-1)^(m+n)*(sin(m.*x)*sin(n.*y))/(m*n); from the way you have written it, it looks l...
Plot double Fourier series in MATLAB
I think your problem is this line A=4*(-1)^(m+n)*(sin(m.*x)*sin(n.*y))/(m*n); from the way you have written it, it looks l...
7年以上 前 | 0
回答済み
Question on designing a filter to remove noise from a audio signal
step 1: analyze the signal and see if you can determine what frequencies are to be kept and what frequencies are to be discarded...
Question on designing a filter to remove noise from a audio signal
step 1: analyze the signal and see if you can determine what frequencies are to be kept and what frequencies are to be discarded...
7年以上 前 | 0
| 採用済み
回答済み
2 signals to 1 channel ? use FFT
assuming that t is a vector containing time intervals, and that F1 and F2 are frequencies, and A1 and A2 are amplitudes, then I ...
2 signals to 1 channel ? use FFT
assuming that t is a vector containing time intervals, and that F1 and F2 are frequencies, and A1 and A2 are amplitudes, then I ...
7年以上 前 | 0
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