Abstract: A method for evaluating measured periodic or quasiperiodic signals of medical sensor systems. The method comprises digitizing the measured signals with a specific first sampling frequency, normalizing the periods of the measured signals to a predetermined period length, using a database in which previously measured signals are stored after digitization with specific second sampling frequencies and in which medical findings are assigned to the stored signals. If the first and second sampling frequencies are not identical, converting the measured signal of the signals stored in the database so as to have the same sampling frequencies.