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Simulink filtering of a table

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Lucas Maiß
Lucas Maiß 2020 年 5 月 25 日
回答済み: Jonas 2020 年 5 月 28 日
Hello,
I have a table with 5 col of input states and one as output.
So for 0.6 & 0.4 & 0.5 & 310 & 100 as input I would like to output 0.0453 (row 1).
So my question is how do I perform such a task in Simulink, as the inputs are signals in a Simulink Model?
Have a nice day!
  2 件のコメント
Lucas Maiß
Lucas Maiß 2020 年 5 月 28 日
I have tried it with the Matlab Function by setting using 'Edit Data' and defining the table as 'parameter'. So that does work for arrays but not for tables. I have also managed to search in the array but I think that is not so efficient than searching in a table, am I right ?
And my solution to that are not much more efficient:
  • Loading a .mat file with the table inside the function -> has to load complete table every time step
  • Converting to a table -> will be performed also every time step
(The table is quiet large (45000x6) so an efficient way would be great, I am also willing to restructure the table if necessary)

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回答 (2 件)

Fangjun Jiang
Fangjun Jiang 2020 年 5 月 28 日
The straightforward way to do this is to use "n-D Lookup Table". You have a 5-D lookup table here. The first 5 columns are the loopup axis, the sixth column is the output data.
Notice the firtst 4 columns of data you show here didn't change value? I imagine the large (45000x6) array is the expanded view of the loopup table data. Take a look at the help and example model of the Simulink n-D Lookup Table block and figure out the proper data for it.

Jonas
Jonas 2020 年 5 月 28 日
Use a Direct Lookup Table with 5 dimensions.

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