From the very little that you have said, you probably need to
1. Define a model that relates the two.
2, Estimate the parameters of the model, using some appropriate scheme for estimation. The scheme employed typically varies, depending on the model used, the noise structure involved, etc.
The point is, this is entirely a question about modeling. It has nothing to do with MATLAB at this point, because you have not yet learned enough about the problem you actually need to solve. You cannot write code for some completely undefined problem.
So first, define the relationship between the waveforms, in terms of parameters. Is that relationships as simple as a shift and scale in some way? Is it more complex? What is the assumed noise structure? What are you willing to assume?
