Abstract
Time of Arrival (TOA) detection is essential successful Acoustic Emission (AE) based structural health monitoring (SHM) system. During high burst rate results AE waves could overlap. AE waves shows similar narrowband, low frequency content thus overlapping of AE waves leads to overlap in both in time and frequency. As a result, the TOA information is lost in the coda of the previous wave and cannot be (reliably) detected by conventional techniques. In this paper, the problem was addressed through creation of a) Wave (Overlapping) Identification (WI) b) Wave Cleaning (WC) c) Arrival Detection (AD) approaches. In this paper, specifically the Wave Detection and Wave Cleaning approaches are introduced and described in detail. 3D Fingerprinting is meticulously designed to exploit wave arrival characteristics thus autogenously identifying the overlapping of waves for completing the WI system. Positive identification activates Wave Cleaning system which eradicates the influence of the Intersecting Wave using adaptive spectral subtraction (ASpS). Post removal of the TOA for the Intersected Wave was identified.
| Original language | English |
|---|---|
| Title of host publication | Structural Health Monitoring 2019 |
| Subtitle of host publication | Enabling Intelligent Life-Cycle Health Management for Industry Internet of Things (IIOT) - Proceedings of the 12th International Workshop on Structural Health Monitoring |
| Editors | Fu-Kuo Chang, Alfredo Guemes, Fotis Kopsaftopoulos |
| Publisher | DEStech Publications Inc. |
| Pages | 57-64 |
| Number of pages | 8 |
| ISBN (Electronic) | 9781605956015 |
| DOIs | |
| Publication status | Published - 2019 |
| Event | 12th International Workshop on Structural Health Monitoring: Enabling Intelligent Life-Cycle Health Management for Industry Internet of Things (IIOT), IWSHM 2019 - Stanford, United States Duration: 10 Sept 2019 → 12 Sept 2019 |
Publication series
| Name | Structural Health Monitoring 2019: Enabling Intelligent Life-Cycle Health Management for Industry Internet of Things (IIOT) - Proceedings of the 12th International Workshop on Structural Health Monitoring |
|---|---|
| Volume | 1 |
Conference
| Conference | 12th International Workshop on Structural Health Monitoring: Enabling Intelligent Life-Cycle Health Management for Industry Internet of Things (IIOT), IWSHM 2019 |
|---|---|
| Country/Territory | United States |
| City | Stanford |
| Period | 10/09/19 → 12/09/19 |
Bibliographical note
Publisher Copyright:© International Workshop on Structural Health Monitoring. All rights reserved.
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