can anyone help me in finding out the location of zero crossing point of an signal whose peak is determined

the signal is only in the positive half so zero crossing point is also the starting point for that cycle

Answer 1

[Carlos]

Hi,if you have a signal like this

c =

    Columns 1 through 15

       0     1     2     3     4     5     6     7     8     9    10     0     1     2     3

    Columns 16 through 22

       4     5     6     7     8     9    10

using find you can find the indices where your vector(representing the signal's values) where the value is zero.

>> find(c==0)

ans =

       1    12