Community Profile

photo

Fangjun Jiang


Last seen: Today Active since 2011

Followers: 1   Following: 0

Message

What is a model? Professional Interests: Model-Based Development

Programming Languages:
MATLAB
Spoken Languages:
English
Pronouns:
He/him

Statistics

All
  • Master
  • 36 Month Streak
  • Revival Level 3
  • First Review
  • Thankful Level 3
  • Knowledgeable Level 5
  • First Answer
  • Solver

View badges

Feeds

View by

Answered
Variable Frequency Ruining Signal in Simulink
Interesting but I think I got the explaination. Everything is correct. You thought something was wrong probably because you mis-...

6 hours ago | 0

Answered
Checking the value at a specific point in time with display in Simulink
u<=133, not u=<133. A better way is below. Make sure to set the solver so the simulation can hit the time point.

9 hours ago | 1

Answered
Why is it that Line objects can be instances of two different classes? How can I use findobj to detect only chart primitives?
load handleArrays.mat get(hD,'Color') get(hD,'Type') get(hL,'Type') class(hD) class(hD(1)) class(hL) class(hL(1)) class(...

3 days ago | 0

Answered
I cannot evaluate "pauseFcn" callback by using "sim" command
A few things. Try SimOut=sim(). It used to be, that if there is no return variable specified, then the simulation won't log the...

4 days ago | 0

Answered
Test Simulink model with functions running at different sample time.
You need to make your test sequence, function-call trigger, or source signal update rate, etc. be the fast rate (2ms). The slow ...

5 days ago | 0

Answered
Create an array of distinct objects of handle class
As long as uilable() can only create a single object, there is no way to avoid the loop. In arrDir(1:2) = uilabel, the same sin...

5 days ago | 1

Answered
plot the function which is dependent on x, y and z with x, y and z on three axis.
You are asking for the impossible, the visualization of the 4th dimension. I thought it was impossible in three dimentional wo...

6 days ago | 0

Answered
Simulink source commands finding
Use the Signal Editor block https://www.mathworks.com/help/simulink/slref/signaleditorblock.html or in older version, it is ca...

8 days ago | 0

Answered
Simulink: Mask parameter fails to bind to block port
It is more involved for this task. I hope the attached model (in R2022b) make it easier. In your model, the two inports are cal...

8 days ago | 0

| accepted

Answered
Stop Simulink Model Update via Callback
Instead of sldiagviewer.reportError(errMsg), if you do error(errMsg), it should stop.

9 days ago | 0

| accepted

Answered
Reset value of Ramp block to be used in Matlab Fctn block
I think it is possible. Use the "State Writer" block. But using the "Integrator" block would be easier. Enable its external res...

9 days ago | 0

Answered
How to write overline on top of a word in title of a plot?
title(["Some text $\bar{XX}/V$","Some other text"], 'Interpreter', 'LaTeX')

9 days ago | 1

| accepted

Answered
Hi, i want to plot two columns of values of data from excel, the graph includes a zero while the excel sheet doesn't. Here is my code and the graph I got vs what I should get
I think the last data point (un-wanted) is at (0,0). Your data shows it. You can look at the value of q and D_q.

10 days ago | 0

Answered
IF statement if == "A variable" not working
Most likely it is a floating point data equal comparison problem. b is somewhere near 9999 but not exactly. Use round() or integ...

10 days ago | 0

Answered
array operations in app designer
Need to specify the .Value property? If not, just pause the code and check its value, app.uhly_array and app.theta1 app.delta1....

10 days ago | 0

| accepted

Answered
Simulink Discrete Filter Sample Time
See the note on this page. To set it in command line set_param('BlockPath','SampleTime','0.1') https://www.mathworks.com/help...

10 days ago | 1

Answered
"Unrecognized method, property, or field 'Type' for class 'matlab.ui.control.WebComponent'."
I think app.tabFiles.Children is an array of handles. Try tf = strcmp(get(app.tabFiles.Children,'Type'), 'uistatebutton')

10 days ago | 0

| accepted

Answered
The code is correct, however I keep getting this error: Invalid color, marker, or line style.
See the possible marker symbol and line symbol help plot Various line types, plot symbols and colors may be obtained with P...

12 days ago | 0

| accepted

Answered
'Could not determine the size of this expression' in simulink function block
In general, it is better to specify the size (number of rows and columns) of all the inputs, outputs and parameters that are use...

12 days ago | 0

| accepted

Answered
variable duty ratio to a switch at different time intervals
I assume this is in Simulink. You can use an AND logic block or Product block to multiply two signals. One is the regular 40% du...

13 days ago | 0

| accepted

Answered
How to use Workspace Variable value instead Sldd value in Simulink model.
Check the "Enable model access to base workspace" at Model Property, External Data tab? https://www.mathworks.com/help/simulink...

13 days ago | 0

| accepted

Answered
Is there a nice way to discretely simulate an LTI system using a function block in Simulink?
Yes. For sys = ss(A,B,C,D,ts), the following equation should be used to advance the simulation step by step. Make sure to use c2...

14 days ago | 0

| accepted

Answered
How can I solve this error??
There is nothing wrong in these commands. The simulation was being started but there is problem in your scenaio. Switch to the...

14 days ago | 0

| accepted

Answered
Building an array of strings that might be empty
That is because app.XminEditField.Value and etc are char array, not string use string() s=["a","","b","c"] c=['a','','b','ded...

14 days ago | 0

Answered
How computationally intensive are switch case action blocks in Simulink?
Yes. More cases will not increase the computation load. Only the activated cases will be executed. It is called the Condtionally...

15 days ago | 0

| accepted

Answered
How to get variable from Simulink model workspace for use with Multiple Simulations?
I think you are looking for model parameter argument. Follow this Q&A. https://www.mathworks.com/matlabcentral/answers/2101666-...

15 days ago | 0

Answered
How to fix this error? : Error:Index exceeds the number of array elements. Index must not exceed 4.
All the Winding parameters need to have 5 elements (including both the left and right side). You have only 4.

15 days ago | 0

| accepted

Answered
Is it possible to use a parameter within the "To Workspace" block?
I remember answering the same question before. The answer is "No" by value passing, but you could do it using set_param(). For ...

15 days ago | 0

Answered
Any good resources on how to use "Matrix Interpolation" block in simulink?
What you need is the "2-D Lookup Table" block. Drag that from the library and select "Nearest" at the "Algorithm" tab. The Help ...

16 days ago | 0

| accepted

Answered
In GUI, RangeSlider 's Value may have a wrong type
No confusion. You will find X = app. FilterHzSlider.Value; X is returned as [50 1000]. So you would do minFrq=X(1); maxFrq...

16 days ago | 1

| accepted

Load more