photo

demos serghiou


Last seen: 9 months ago |  Active since 2016

Followers: 0   Following: 0

Statistics

  • Thankful Level 3

View badges

Feeds

View by

Question


How can I add a second x-axis on top of the matlab figure for the same graph?
I have the following plot on matlab and want to add a second x-axis on top to show the corresponding distances with the same num...

1 year ago | 1 answer | 0

1

answer

Question


Difference between ar() function burg implementation and arburg() function
If we have e.g. ar(y,20,'Burg') where y is the time series and 20 is the model order, y must have a length of 40 data points min...

1 year ago | 1 answer | 0

1

answer

Question


How to extract idpoly property to workspace
Hi, how can I extract and put in my workspace variable A and NoiseVariance from idpoly to do further processing?

2 years ago | 1 answer | 0

1

answer

Question


Replace matlab function with user defined function in code
Hi, the existing function is as follows: [a,e] = arburg(est_x1,PSam,k); I would like to replace the arburg fucntion with the f...

2 years ago | 0 answers | 0

0

answers

Question


Interpolate columns in matrix that contain NaN values
Hi I have this code to interpolate data that is set to NaN. I use the fillmissing function as shown below but it does not do the...

2 years ago | 1 answer | 0

1

answer

Question


Interploate between rows in a matrix when the corresponding columns of vector R_f with values ranging between 0 and 1 are less or equal to 0.5
Hi, I have a matrix "mat_up" (231*201 complex double). I also have a vector R_f (1x231 complex double). When abs(R_f) is less or...

2 years ago | 1 answer | 0

1

answer

Question


Interpolate between columns within matrix to remove glitched data
Hi, I have a complex matrix where some colums contain glitched data. If columns 25,26 contains glitched data, how can I interpol...

2 years ago | 1 answer | 0

1

answer

Question


Set cells in matrix equal to sqrt(10^-7), when the cells of the fft of the matrix obey 20.log10(abs(mat_tau))<=-20
I have a complex matrix mat_tau. I want for the cells of mat_tau which obey 20.log10(abs(mat_tau))<=-20 to equal to -70, and the...

2 years ago | 1 answer | 0

1

answer

Question


Complex number division of matrix over a vector
Hi, I am trying to divide a matrix that includes complex numbers with a vector that includes complex numbers. The cells in the r...

2 years ago | 2 answers | 0

2

answers

Question


Markov chain modeling of multipath propagation
I have a mesh figure of amplitude vs time delay vs offset distance. How can I use a Markov chain to model the multipath distribu...

2 years ago | 1 answer | 0

1

answer

Question


I am trying to paste code in the Matlab Editor but the underscores are missing and there are spaces between the characters, how can I fix this?
When I try to paste code from a pdf document to the matlab editor, for example: k_water ( v_ind ) = k_water ( v_ind ) + . . . ...

2 years ago | 1 answer | 0

1

answer

Question


How can I convert multiple .cti files to .txt files
Hi, I have a large number of .cti files and I would like to convert all of them at the same time to .txt. Thanks

3 years ago | 1 answer | 0

1

answer

Question


How can i transmit a modulated signal through a AWGN channel which adds a zero mean gaussian real random number with variance s^2
M = 4; data=randi([0, M-1], 10000,1); modData = pammod(data,M); scatterplot(modData) title('4-PAM'); snr=[0 2 4 6 8 10 12...

8 years ago | 0 answers | 0

0

answers

Question


hi everyone, can anybody tell me how to plot a constellation diagram with four signal levels of 00 to -3d, 01 to -d, 11 to +d and 10 to +3d, or if not, just tell me how the diagram should look like? I have written down the code used to generate bits
for i=1:5 rand(2,1)>0.5 end

8 years ago | 0 answers | 0

0

answers