Detection of signal peaks in measurement time series, either in the time or frequency domain, especially for detection of squealing vehicle brakes, whereby signal processing is improved to increase the reliability of detection

摘要

Method has the following steps: (a) generation of a discrete amplitude spectrum of the measurement series (b) generation of a smoothed amplitude spectrum from the discrete spectrum (c) point-wise division of the amplitude spectrum of step (a) by that of step (b) (d) point-wise comparison of the results of step (c) with threshold value and (e) classification of the discrete spectrum values of step (a) as signal peaks if the exceed the threshold value. The invention also relates to a corresponding device.