Repeat a time based signal in Simulink (not using *.m script) / during Start of simulation based on number of repetitions

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Ankit 2021-7-19

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评论： Fangjun Jiang 2021-7-21

采纳的回答： Fangjun Jiang

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I am looking for a way to repeat a time based signals "n" times in Simulink as soon as I run the simulation.

Just for reference I am adding the x,v values for the below plot which is being used currently in 1-D Lookup table.

x = [0, 11, 15, 23, 25, 28, 49, 61, 85, 93, 96, 117, 143, 155, 163, 176, 185, 188, 206, 210, 218, 220, 223, 244, 256, ... 
                            280, 288, 291, 312, 338, 350, 358, 371, 380, 383, 401, 405, 413, 415, 418, 439, 451, 475, 483, 486, 507, 533, 545, 553, 566, ... 
                            575, 578, 596, 600, 608, 610, 613, 634, 646, 670, 678, 681, 702, 728, 740, 748, 761, 770, 773, 800, 841, 891, 899, 968, 981, ... 
                            1031, 1066, 1096, 1116, 1126, 1142, 1150, 1160, 1180];
v = [0, 0, 15, 15, 10, 0, 0, 32, 32, 10, 0, 0, 50, 50, 35, 35, 10, 0, 0, 15, 15, 10, 0, 0, 32, ... 
                            32, 10, 0, 0, 50, 50, 35, 35, 10, 0, 0, 15, 15, 10, 0, 0, 32, 32, 10, 0, 0, 50, 50, 35, 35, ... 
                            10, 0, 0, 15, 15, 10, 0, 0, 32, 32, 10, 0, 0, 50, 50, 35, 35, 10, 0, 0, 70, 70, 50, 50, 70, ... 
                            70, 100, 100, 120, 120, 80, 50, 0, 0];

Just for an example i want to duplicate the above signals 3,4 .. n times!

With repmat it is possible to duplicates the value but x values should be monotonically increasing! Is there any built in functions which can be used.

P.S: I already have working solution which I created as a function. But I am looking for a simulink model with library blocks.

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Answer 1

Fangjun Jiang 2021-7-20

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https://ww2.mathworks.cn/matlabcentral/answers/881753-repeat-a-time-based-signal-in-simulink-not-using-m-script-during-start-of-simulation-based-on#answer_750453

Repeating Sequence block

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Ankit 2021-7-21

Unfortunately I forgot to mention and I will edit the question. I need repeat the signals as soon as I click the run simulation button. I am not looking for solution which edit the signal during the simulation run. And I already consider the repeating sequence block but it didn't solved my purpose

Fangjun Jiang 2021-7-21

Read the comment again. Multiply the outputs of the Repeating Sequence block and the Step block would implement this. If N is an external input ("user input" implies block parameter dialog input), you can multiply this external input with the Time Period (T, e.g. 1200 seconds). Use a Clock block to compare the simulation time with N*T, and then do the switch using the True or False output.

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