I'm looking for techniques to extract the pulse shape of an irregularly occuring pulse in long term data, such as for example, down stream surges in river flow data (UK has irregular rain fall).
The regular autocorrelation isn't really a good predictor of the pulse shape. And cross correlation is a possiblity, but we don't know haw many pulse we are looking for.
I'm not aware of any of the embedded mathcad functions doing this.
Any suggestions?
Philip