The Application of Self-Adaptive Wavelet Neural Network in Multi-Layered Structure Ultrasonic Testing of the Solid Rocket-Motor

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Abstract:

t is important to remove the noise signal effectively in non-destructive ultrasonic testing. Use the wavelet and neural network algorithm in multi-layered structure ultrasonic testing system of the solid rocket-motor, and construct self-adaptive wavelet neural network in the ultrasonic testing in order to restrain the noise. Better fitting signal is achieved by choosing Orthogonal Daubechies wavelet group and optimize the scale parameter by a searching algorithm. The simulation result shows that the wavelet neural network can make the testing system less distortion and better noise cancellation, and the method can be widely applied to ultrasonic detecting.

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474-478

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September 2013

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© 2013 Trans Tech Publications Ltd. All Rights Reserved

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