How I can find the index when both signals are high?

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Tehreem Syed
Tehreem Syed 2020-8-3
评论： Tehreem Syed 2020-8-3
I have two signals. I want to find out indexes on which both signals are high. Both signals have the amplitude (0 & 1). Blue signal is shifted at y=1. Please help me. Thanks

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Bruno Luong
Bruno Luong 2020-8-3
编辑：Bruno Luong 2020-8-3
Assuming your signal are binary vectors of the same size b and r
both = min(b,r);
d = diff([0; both(:); 0]);
upidx = find(d==1) % index where both become high, a & c
downidx = find(d==-1) % index where any of b/r becomes low (so both is no longer high), b & d
lgt = downidx-upidx % (b-a) and (d-c)
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Bruno Luong
Bruno Luong 2020-8-3
编辑：Bruno Luong 2020-8-3
Sorry I give up. Your example is not generic for me, it's even totally trivial as both signal are exactly out of phase to each other. Your "explanation" is then not useful for me.

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