Plotting Square wave from pressure signal

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Tehreem Syed
Tehreem Syed 2020-8-17
评论： Tehreem Syed 2020-8-17
Hi,
I have pressure signal collected from the sensors placed under foot. Findpeaks function was used to detect points (c and d). Point ( and b) are the zero crossing. I want to plot sqaure wave from this signal for the following interval:
If pressure signal is greater than point (a) and equal to or less than point d
new_signal = 1;
else if pressure signal is greater than point (b) and equal to or less than point f
new_signal = 0;
How i can plot this in matlab?

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回答（1 个）

Antonio Ciociola
Antonio Ciociola 2020-8-17
编辑：Antonio Ciociola 2020-8-17
This can be done transforming your signal into an arry of logic values:
sig_bool = (signal>a & signal<=d);
  1 个评论
Tehreem Syed
Tehreem Syed 2020-8-17
Thanks for your answer. We also have point c. I am detecting peaks using findpeaks function. I am getting both point c and d. I am not getting the required result using this logic.

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