Seth Popinchalk

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Character Variables in Simulink
While characters are not a type you can use on a signal line, you can cast them to an Int8 and then work with that. No blocks i...

13 years ago | 2

Answered
FFT not matching with Continuous FT
Computing the correct scaling of the FFT is difficult as you must also account for the length of the signal data. This is exp...

13 years ago | 0

Answered
Time dependent switch
Use the output of the Clock as the control signal for the switch. Then the threshold can be set to the time you would like it t...

13 years ago | 3

Answered
Matlab Compiler And Simulink
The SIM and SIMSET command can not be called from the MATLAB Compiler (This is documented <http://www.mathworks.com/help/compile...

13 years ago | 2

Question

What configuration management system do you use for Model-Based Design?
Model-Based Design produces multiple files that require managing them through version control, and configuration management. Wi...

13 years ago | 3 answers | 1

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Answered
Recommendations for Automation Tools... Missing
This section of the MAAB guidelines "recommends" to *tool builders* that they provide a table reporting the level of compliance ...

14 years ago | 0

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Answered
simulink library browser blocks gone
This could be the result of a corruption of the library browser repositories. These can be regenerated by deleting or renaming ...

14 years ago | 0

Answered
Simulink library browser shows "No blocks"
This could be the result of a corruption of the library browser repositories. These can be regenerated by deleting or renaming ...

14 years ago | 0

Answered
Simulink Model
Models will evaluate blocks multiple times in the same time step when there are algebraic loops. Turn the algebraic loop diagno...

14 years ago | 1

Answered
sum function
The <http://www.mathworks.com/help/toolbox/simulink/slref/add.html Sum block> can operate on a vector signal, summing all the el...

14 years ago | 0

Answered
Simulink modeling problem
# Rewrite the equations as a system of first order derivatives. (Your equations are already in this form) # Add integrators to...

14 years ago | 0

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Answered
demux
If your multiplex operation is using the SUM block, you will have a hard time separating the impulses. It may be possible to de...

14 years ago | 0

Answered
Wireless webcam integration for Real-Time Windows Target
You can use the <http://www.mathworks.com/help/toolbox/imaq/fromvideodevice.html From Video Device block> from the Image Acquisi...

14 years ago | 0

Answered
how to calcuate derivate using simulink
The derivative block computes a time based derivative, using a difference ratio (not an analytic derivative). There is no blo...

14 years ago | 1

Answered
how do I use simulation time as realtime changing variable?
Use a Clock or Discrete Clock block to create a signal (t) then operate with that as your input to the algorithm. The algorithm...

14 years ago | 2

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Answered
Simulink PID Controller Tuning
Try setting the Max Step Size to a small number (.1 or .01). It is possible that the model steps are too large to capture the f...

14 years ago | 0

Answered
to compare the floating value of a signal with file.mat signal
You can build the equation using blocks from the Math Operations and Logic and Bit Operations libraries. You will need an <ht...

14 years ago | 0

Answered
differential equations
Fixed step size is a solver setting under Configuration Parameters on the Solver page. If you are running a continuous model wi...

14 years ago | 0

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Answered
How to plot graphs automatically in a simulink model??
There are lots of ways! * Signal Viewers * Scope blocks * etc.

14 years ago | 0

Answered
To workspace Block and To Workspace Signal don't exist in workspace
Variables assigned to the workspace do not appear until the model is paused or stopped. If you are trying to process the data f...

14 years ago | 0

Answered
Simulink filter simulation
Save your data to a file and use the <http://www.mathworks.com/help/toolbox/simulink/slref/fromfile.html From File block>. This...

14 years ago | 0

Answered
Why does the Simulink Model Window keep losing focus on my Mac Book?
Simulink models are X11 windows on the Mac. Click on the X11 icon in your dock, select X11 > Preferences from the menu, and then...

14 years ago | 0

Answered
How to build a simulink model which can generate HDL coder to resize images or videos?
If you are scaling down, a simple method to re-sample the signal could be used. You could resize to 1/2, or 1/3, etc by just se...

14 years ago | 0

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Answered
RFID circuit simuling help:(
Yes, it is possible.

14 years ago | 0

| accepted

Answered
how do you threshold using simulink auto threshold block?
The noise is probably due to a very even background color in your image. With such an even intensity, the Autothreshold block w...

14 years ago | 0

Answered
Implementing a real-time clock
You will not be able to achieve <http://en.wikipedia.org/wiki/Hard_real_time#Hard.2C_firm.2C_and_soft_real-time "hard real-time"...

14 years ago | 0

Answered
MATLAB Simulink - Hydraulic Windlass System
Start by looking at the forces on your system and the equations that define the motion. For a mass, you can probably approximat...

14 years ago | 0

Answered
Interfacing 'Universal Bridge' with mathematical model of generator drive
The only way to interface between Simulink and SimPowerSystems is through sensors/sources, be they current or voltage.

14 years ago | 0

| accepted

Answered
how to use set_param in a subsystem to change values of block same subsystem
In order to change the threshold of a switch, I recommend setting the threshold to .5 and using a Relational Operator to compare...

14 years ago | 0

Answered
GRT target code runs slower than Rapid Accelerator mode
The memory layout for a GRT executable and a Rapid Accelerator executable could be quite different. Depending on cache effects,...

14 years ago | 0

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