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**Content Feed**

Question

Looking Assistance for Data Acquisition and Parallel Processing with USRP B200 in MATLAB

Hello dear MATLAB Community, I am looking for a solution to receive and save data from the USRP B200 using the USRP Communicati...

17 days ago | 0 answers | 0

### 0

answersI am getting the error message "Device discovery error: input stream error"

The errors: [ERROR] [UHD] Device discovery error: receive_from: An existing connection was forcibly closed by the remote host [...

6 months ago | 0

Question

Preallocating and filling long array with shorter arrays

Hello dear community, I have a question: If I want to fll an array with single values using preallocation, I do: input = zero...

9 months ago | 1 answer | 0

### 1

answerQuestion

Store matrixes with variable dimensions to stereo WAVE files

Hello dear experts, I want to write IQ data from radio to stereo wav-File (use WAVE like datacontainer). So I (real part) to o...

1 year ago | 0 answers | 0

### 0

answersHow to store complex double data to WAV?

I found a solution by spliting to real ang imag, save it in two different wav-files. % split data to real and imag data_I = ...

1 year ago | 0

Question

How to store complex double data to WAV?

Hello together, I receive IQ data (real and imaginary values) from radio and save it to variable "IQ_data_before_write". The...

1 year ago | 1 answer | 0

### 1

answerQuestion

Why do I get additional frequencies using standard audiowrite BitsPerSample values?

Hello, I want to write spectral data to wav file and read it again. If I do some example with two sine waves, after writing+...

1 year ago | 1 answer | 0

### 1

answerQuestion

How to display data saved with getSpectrumData? Why are saved values different from input?

Hello dear community, in my example code I create two sinus signals, display it with spectrumAnalyzer and save data to tables ...

1 year ago | 0 answers | 0

### 0

answers"Invalid MEX-file" error while setup of "Communications Toolbox Support Package for USRP Radio" Add-on

Hello, I solve a Problem. Uninstall UHD package Open Dependency Walker inside of MATLAB: ! D:\path\to\dependencywalker\de...

1 year ago | 1

| accepted

Question

"Invalid MEX-file" error while setup of "Communications Toolbox Support Package for USRP Radio" Add-on

Hello all, I want to use my Ettus research USRP B210 with Communications Toolbox Support Package for USRP Radio Addon. Whil...

1 year ago | 3 answers | 2

### 3

answersQuestion

Compare values in two matrix with different length by time in first row

Hello, I have one aim to do comparison of values in two matrices without using for loops (array are huge). I show you exampl...

3 years ago | 1 answer | 0

### 1

answerQuestion

Convert cell array to matrix with two columns and sort rows by first column value

Hello, I have a large Cell array with multiple cells. Every these cells has n-rows and two columns. I want to convert this ce...

3 years ago | 2 answers | 0

### 2

answersQuestion

How to remove outliers without using filter?

Hello, I have a measure results and there are some random outliers with a big negative or positive values (jitter of uC), ther...

3 years ago | 1 answer | 0

### 1

answerQuestion

Shift array to left or right, keep length and feel zero empty area

Hello, I have an array: A = [1 2 3 4 5 6 7 8 9]; I want create B array from A B = [0 0 1 2 3 4 5 6 7]; or B = [3 4 5 6 7...

3 years ago | 3 answers | 0

### 3

answersChange output resolution by export_fig

I found it: export_fig('-m3', Full_Plot_Path_Name)

3 years ago | 0

| accepted

Question

Change output resolution by export_fig

Hello, I'm trying to save my diagrams with png higher resolution, but I can't find a right code. My output looks so: expor...

3 years ago | 2 answers | 0

### 2

answersQuestion

Optimizing for loops by searching some data in cell arrays

Hello, I'm searching in multiple cell-array for some data: for traj_cnt = 1:size(Traj_interpl,2) %for every Traj-Cell ...

3 years ago | 1 answer | 0

### 1

answerQuestion

load multiple files in right order

Hello, I'm loading multiple mat-files in workspace, the names of files are: Schweben_Meg_2_2-01_SNR_-030_PLL.mat Schweben_Meg...

3 years ago | 1 answer | 0

### 1

answerwrong number of rows of cell array using length()-function

If i want to build it in my for-loop, what is the nice way to do it? Old part of code for traj_cnt = 1:length(Traj_interpl) ...

3 years ago | 0

Question

wrong number of rows of cell array using length()-function

Hello dear community, I get some error by using length in one Cell-Array on Traj_interpl{1,209}: for traj_cnt = 1:length(Traj_...

3 years ago | 4 answers | 0

### 4

answersQuestion

How to avoid statistical outliers under special speed (acceleration and deceleration)

Hello dear community, I use and plot some measure data (rotating speed of 4 motors). The measures work great up to speed of 30-...

3 years ago | 1 answer | 0

### 1

answerQuestion

change text colour in foreground of line plot

Hello, how can I change text color above line plot? It is possible? Its not about changin whole text color, its about just th...

3 years ago | 2 answers | 0

### 2

answersQuestion

Difference between errorbar and errorbarxy (function)

Hello, I'm calculating and plotting a mean-Values and standard deviation: If I plot it via errorbar, I get: .... errorbar(M1...

3 years ago | 1 answer | 0

### 1

answerQuestion

Better way to display lablepoints in ROC-Curve

Hello, next to data plot I print lablepoint with SNR-values. How can I display it nicer, maybe to change a label order, or colo...

3 years ago | 0 answers | 0

### 0

answersQuestion

Lablepoints create name with variable

Hello, simple question: SNR = -30 -15 0 15 30 I want: SNR_Name = 'SNR = -30' 'SNR = -15'...... to put ...

3 years ago | 1 answer | 0

### 1

answerStandard deviation values are to big

Oh, mea culpa - I see, standard deviation bars are not wrong - the results from different measures are really far away from each...

3 years ago | 0

Question

Standard deviation values are to big

Hello, the measures on first pic is a dataset: later. I change my script and now I create a mean values (between groups 0.5m...

3 years ago | 1 answer | 0

### 1

answerQuestion

save matrix in loop to 3D matrix (storage all inkomming matrix)

Hello, I read multiple .mat-files with matrix M x-y-axis (5x2doubles) and have to save it. I think, the better way is to create...

3 years ago | 1 answer | 0

### 1

answerQuestion

Avoid lower case in legend by plotting legend with 'DisplayName'

Hello, I have again a similar Problem, but in this case I can't separate legend, and : 'Interpreter','none' is here also not w...

3 years ago | 2 answers | 0

### 2

answersQuestion

Order of filenames is wrong

Hello, I have save some measures in loop with SNR = 30 SNR_steps = 15 -SNR:SNR_steps:SNR ans = -30 -15 0 15 3...

3 years ago | 1 answer | 0