An integration method for the analysis of multiexponential transient signals

A new algorithm is introduced to analyse multiexponential transient signals optionally including a non-zero baseline. It requires a digitized transient and allows one to determine time constants and amplitudes of discrete components which are supposed to compose the signal. The algorithm is based on a fit of the signal against its (for more than one component multiple) integral(s). It is tested using simulated transients with white or discretization noise. The results are found to be quite accurate even for noisy signals, and they are compared with those obtained from other fitting methods.