Plotting Square wave from pressure signal

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?

Answer 1

[Antonio Ciociola]

This can be done transforming your signal into an arry of logic values:

sig_bool = (signal>a & signal<=d);

[Tehreem Syed]

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.