Frequency Domain Analysis

Waveform based analysis, such as FFT, wavelet transform, enhanced feature extraction and pattern recognition provides additional information about e.g. source mechanisms, damage evaluation or wave propagation.

For frequency domain analysis Vallen Systeme provides its software module VisualTR (VTR) which contains the Feature Extractor. The Feature Extractor is an interface for different plugins that extract features from frequency domain and make them available for analysis in VisualAE. The Feature extractor can run in online and offline mode.

For statistical analysis of frequency domain features Vallen Systeme provides VisualClass pattern recognition software. VisualClass enables an operator to generate a classifier for frequency domain features in a fast and comprehendible way. A classifier designed with VisualClass can be used to classify waveforms in real time as a plugin of the Feature Extractor.