I am a new user of Mathematica (ver. 9.0) and I kindly ask your help for some data analysis. I have a list of measurement (Voltage) acquired at a constant frequency. This signal is interrupted periodically by a characteristic drop, which is intrinsic in the measurement method (see example below). The time zero is set at the middle of the first "drop".
Every drop is constitued by several datapoints, i.e., is not a single measurement (second image). I would like to exclude the drops from the data to work on the real signal which is the one comprised between each fall in the intensity. Can you suggest an easy way to filter or delete this artificial signal variation?
P.S. I also provide a data sample, which you can download from this link: https://www.dropbox.com/s/0qspq669ksk7lai/Iamorph.txt?dl=0