The Delay Multiply and Sum Algorithm for Lamb Waves Based Structural Health Monitoringdoi:10.1007/978-3-030-64908-1_61Ultrasonic guide waves (GWs) have increasingly been adopted in Structural Health Monitoring (SHM) of plate-like structures because of their versatility. To operate, SHM based on ...
Recent studies focused on the development of guided wave imaging systems in the time domain, including, through the use of triangulation [10], sum and delay beam forming [11–14] or tomographic reconstruction [15]. Triangulation requires a limited number of sensors and provides a limited resoluti...