How do I get signals to repeat to infinity?

Question

HayMakerMaker 2016-7-26

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/297219-how-do-i-get-signals-to-repeat-to-infinity

回答： Rodrigo Prat 2020-6-20

Good morning.

I have the following signals in the Signal Builder block in Simulink. These signals need to be timed as shown, and I need this 30 second sequence to repeat as long as the program is running. How can this be done?

Running Matlab R2012b.

Thanks.

0 个评论
显示 -2更早的评论隐藏 -2更早的评论

请先登录，再进行评论。

请先登录，再回答此问题。

Answer 1

Swarooph 2016-7-26

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/297219-how-do-i-get-signals-to-repeat-to-infinity#answer_229808

在 MATLAB Online 中打开

I don't think this can be done using the Signal Builder block. It has only 3 options to set after final time. 'Hold final value', 'Set to Zero' or 'Extrapolate'. (File --> Simulation Options). You can instead try to use a 'Repeating Sequence' block.

Export data from Signal Builder to Workspace. (File --> Export to Workspace). For this example keep the variable name as channels.
Now your time data is specified by variables such as

channels(1).xData
channels(2).xData
          .
          .
          .
channels(n).xData

Your signal data is specified by variables such as

channels(1).yData
channels(2).yData
      .
      .
      .
channels(n).yData

Use a repeating sequence block and set Time Values and Output Values appropriately. You will have as many blocks as signals.

If you are planning on doing something like this quite often, you could create a masked subsystem that takes the entire channels variable and redistribute it to several programmatically created Repeating Sequence blocks underneath.