Clear Filters
Clear Filters

How to create a buffer FIFO, filter and then save in an array values that are between an specific range of values?

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I have a sine wave as input signal at a sampling rate of 0.02. I want to process the first 1000 sampling points = 20 sec in a FIFO buffer
Signal ---> buffer size (1000) ---> full --> save in an array only values that are negative. --> next 20 seconds.
This is the simulink implementation that I have so far. My idea is to have two signals the real one an the delayed one. Save in a buffer the data from the delayed signal. Lets say that the delayed signal has a delay of 20 seconds, from this one I buffer the first 20 seconds and apply my filter of negative values and save them in an array. That means that when I buffer the next 20 are ready to be buffered, processed and filter.
Hope we can discuss some good ideas!

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Accepted Answer

stozaki on 16 Feb 2020
I attached modified model you made.
unbuffer is just for the description of the block. It is arranged to explain the difference from Buffer. There is no more meaning.
Mariana on 17 Feb 2020
How can I delete the data from previous steps. I dont want accumulate all values in the matrix. I just want to have a fixed number of 1000 values inside this matrix.

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