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  3. finding at what time does 2 waveform cross each other

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finding at what time does 2 waveform cross each other

JagdishP
JagdishP over 7 years ago

Hi,

In calculator we have a function named "cross" which gives the time at which the respective signal crosses a set value(constant).

if one of the waveform was constant, I would have taken the average value of it and compare the 1st waveform with these average value using cross function.

But what if both the waveforms are random ?

How can i know at what time does the 2 random waveform cross each other? is there any direct function which i can use?

Regards,

Jagdish

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  • Andrew Beckett
    Andrew Beckett over 7 years ago

    Hi Jagdish,

    Subtract one waveform from the other, and then use cross to see when it crosses 0.

    Regards,

    Andrew.

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  • Dimitra Papazoglou
    Dimitra Papazoglou over 7 years ago

    Hi Jagdish,

     In the cross function, you could use the difference of the 2 waveforms as signal and then set the threshold value to 0. 

    Regards,

    Dimitra

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  • JagdishP
    JagdishP over 7 years ago in reply to Andrew Beckett

    Thanks Andrew, I did the same so that my work is not stopped. But I was looking if there is any direct function.

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  • Andrew Beckett
    Andrew Beckett over 7 years ago in reply to JagdishP

    Hi Jagdish,

    I don't understand why you'd need a "direct" function to do this - this is precisely the kind of expression that would be normal. It would seem an over-complication to provide a special function just to handle this specific case. The overall expression wouldn't be any shorter either!

    Andrew.

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  • JagdishP
    JagdishP over 7 years ago in reply to Andrew Beckett

    Hi Andrew,

    I totally agree with you, but just out of curiosity, I wanted to know if there is any direct function available. 

    Thanks & regards,

    Jagdish 

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