• P-ISSN 0974-6846 E-ISSN 0974-5645

Indian Journal of Science and Technology


Indian Journal of Science and Technology

Year: 2015, Volume: 8, Issue: 29, Pages: 1-11

Original Article

The Use of Complex-Modulated Signals at US Testing of Extended Complex-Structured Products


The results of analysis of the possibilities to use Complex-Modulated radio pulses as probing signals in US flaw detection are given. It is shown that the application of Complex-Modulated echo signals in the receiving path optimal filters improves the basic parameters of the echo control method – sensitivity and resolution capability, and, in presence of white noise and not correlated interference, generally increases the reliability of the testing method.
Keywords: Complex-Modulated Signals, Electro acoustic Pickup, Frequency-Modulated Pulse, Optimal Filtering, PhaseShift Keyed Signal, US Flaw Detection


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