TY - GEN A1 - Heckel, Thomas T1 - Signal processing for non-destructive testing of railway tracks N2 - Increased speed, heavier loads, altered material and modern drive system concepts result in an increasing number of flaws in railways. Caused by the rapid change in damage mechanism by modern rolling stock the appearance of the flaws also alters. Hence, interpretation of non-destructive rail testing results may become difficult. Caused by the changed interplay between detection method and flaw the recorded signals will result in an unknown type for the rail flaws type classification. Methods for automatic rail inspection according to defect detection and classification have been developed continuously. Signal processing is a key technology to master the challenge of classification and maintain resolution and detection quality independently of operation speed. The basic ideas of signal processing based on the Glassy-Rail-Diagram for classification purposes will be presented. Examples for the detection of damages caused by rolling contact fatigue are given. Synergetic effects of combined evaluation of diverse inspection methods are shown. T2 - QNDE 2017 CY - Provo, UT, USA DA - 17.07.2017 KW - Rail testing KW - Signal processing KW - Ultrasound PY - 2017 UR - https://opus4.kobv.de/opus4-bam/frontdoor/index/index/docId/41150 AN - OPUS4-41150 AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany