MATLAB Simulation

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Questions related to MATLAB Simulation

How can I put the REAL elapsed time as a constraint in a Simulink simulation?

I'm using simulink with an optimization method to fit a dynamic model. My model is extremely stiff and for some parameters that set by the optimization, the simulation crash, but the simulation...

17 November 2016 3,192 5 View

How to calculate definite integral with varying bounds in Simulink Matlab?

I had calculated R from a block diagram in Simulink and I want to calculate J_rms=sqrt((1/Deta_t)*int(R, tau, t-Deta_t, t)); which 'R' has been calculated in previous block diagram, 't' is a...

16 November 2016 5,496 3 View

How to achieve consistency with Matlab canon(sys, 'modal') function?

I have a problem with CANON functions of different Matlab versions (e.g. 2007b, 2010b, 2011a) returning inconsistent results for the same call parameters (sysd = canon(sysd0,'modal'): - the...

10 November 2016 3,846 3 View

How we can use dll files instead of mex files in s-functions in matlab?

Hello! I’m working on seismic control of cable stayed bridges. In files included in the benchmark problem statement, only General_Newmark2.dll exists and I can’t find General_Newmark2.mex. I use...

08 November 2016 3,897 2 View

How to optimize coefficients of symbolic integral using Matlab?

I have a symbolic integral with symbolic parameters (x(1), x(2),x(3),t). I am trying to fit this symbolic integral to experimental data and acquire those parameteres (x(1),x(2),x(3)). I tried to...

07 November 2016 1,761 1 View

Matlab Classification Decision Boundary?

I have a question on the decision boundary for classification. In all the online tutorials, decision boundary are usually 2-d plot. For example, x vs y. However, I would like to draw a decision...

03 November 2016 7,811 4 View

About .tif to .mat convert in MATLAB?

I use < A = imread ('z.tif');save('aster.mat','A'); % code > as the source of my model, it's always saying: "Error ! ncol and nrow should be >=3 ! For 1D simulation, use 3 rows and...

10 October 2016 6,521 2 View

MATLAB control of USB power supply?

I have a USB powered LED strip which has a microcontroller in the USB cable itself. I am trying to control the power supply to the LED through MATLAB such that I can control the light signal...

07 October 2016 9,625 7 View

How can I import a stimulus file generated in Matlab to Clampex?

Hi there,I want to give current pulses through an extracellular stimulation electrode via Clampex and a stimulus isolator. It is not possible to generate the temporal pattern of the current pulses...

04 October 2016 3,149 3 View

What is wrong with my current waveform?

Hello, This question pertains to Matlab simulation. I will be grateful in case anyone knows the answer. Attached .docx file is a Simulink circuit of a inverter simulation. In order to implement...

23 September 2016 8,397 5 View

How to load multiple excel files, do some processes in each files and extract the derived values in Matlab?

Dear all, Since I didn't find yet the answer from matlab forum, I want to ask about it here. I have one folder with hundreds of xlsx files inside. I have a script running for each file and I've...

22 September 2016 985 2 View

How can I change values of some parameters at a certain iteration in time while I am running ode45 in MatLAB?

Hi, I am running some simulations using common ODE and SDE solvers in MatLAB and would like to change some parameters at certain points in time while the solver is running to simulate experimental...

20 September 2016 3,014 2 View

Magnetic field around a dipole?

I want to implement the magnetic field around a 3D dipole in z direction in MATLAB and look at it slice by slice in all three directions. I have got an expression from internet which is...

29 August 2016 9,003 4 View

Matlab Simulation singularity problem?

Dear all, I have a problem with matlab simulink file that i have built. I use some lookup tables inside the program. These tables contain two dimensional data; two inputs for the table with one...

16 August 2016 4,176 15 View

Are there tools in Matlab to create the phantom sinogram from the analytical expression directly?

To create a simulated phantom sinogram, it is common to firstly create the 2-d digital image: I = phantom(xxx), and then apply the radon() transform: R = radon(I, theta). Since the phantom image...

09 August 2016 3,719 3 View

Not able to get correct response out of a fitnet corve in matlab neural network?

Actually i am working on a actuator controlled laser pointer on a a screen.I feed the neural network with laser pointers coordinate on a screen as input and corresponding actuators position as...

08 August 2016 7,364 3 View

Please can anyone explain how to simulate parabolic antenna with MATLAB?

please i need explanation of how i can use MATLAB to simulate parabolic antenna

08 August 2016 3,926 7 View

I wish to use neural network using nntool of matlab for Devnagari Numeral Recognition, but getting error - ".Out of memory...". Can anybody help me?

The objective is offline handwritten Devnagari numeral recognition for which some features are extracted. · Training Data: handwritten hindi numerals - 10 numerals with 200 samples for each...

30 July 2016 7,825 3 View

How to plot multiple datasets onto one figure in curve fitting toolbox?

Hi everybody I'm using curve fitting tool of MATLAB for fitting a curve to my x-y data.I want to plot multiple data sets ((x1,y1),(x2,y2),(x3,y3),....) onto one figure after fitting a curve to...

17 July 2016 4,766 3 View

is it possible to use Direct MRAS in non-minimum phase plant?

Hi why Direct MRAS is generallyrestricted to minimum-phase systems. would you pleas tell me the reasons .

16 July 2016 6,242 2 View

Is it possible to feed the data output from MATLAB model or script files to ETAP simulation?

Dear all, I need to extract the data/ optimized parameters obtained from the optimization algorithm written as MATLAB script into ETAP simulation of power grid. is it possible in any simpler...

12 July 2016 9,835 3 View

Why ROC Curves developed by MATLAB tools are not completely consistent with ROC curves plot from "Principles of underwater sound" (Urick, 1983)?

The mean processed signal to noise ratio was calculated to be 30 dB for the Raytheon sonar, and 13 dB for the Klein sonar. Using the Receiver Operating Characteristic (ROC) curve displayed (figure...

08 July 2016 692 2 View

How to have a good convergent results ?

After reading the article 'Application of the unscented Kalman filter for real-time nonlinear structural system identification',the author used the EKF and UKF to identify the parameters of a two...

07 July 2016 2,311 3 View

is it possible to use Direct MRAS in non-minimum phase plant?

Hi why Direct MRAS is generallyrestricted to minimum-phase systems. would you pleas tell me the reasons .

07 July 2016 3,332 2 View

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