Chaotic characteristics analysis of simulation signal of ultrasonic nonlinear modulation effect

机译：超声非线性调制效应模拟信号的混沌特性分析

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The effectiveness of chaos and fractal theory in analyzing ultrasonic nonlinear modulation signal was theoretically verified and a new way of using chaos and fractal theory in nondestructive testing is provided based on the simulation signal of ultrasonic nonlinear modulation effect. By constructing the simulation signal of modulation effect, the simulation signal with the chaotic character was found, and the nonlinear parameter and characteristic values of chaos theory were calculated to analyze the nonlinearity of specimens. By comparisons, the conclusion could be found that the Lyapunov exponent was sensitive to weaker nonlinearity and unsusceptible to noise.

机译：在理论上验证了混沌和分形理论在分析超声非线性调制信号时的有效性，并基于超声非线性调制效应的模拟信号提供了非破坏性测试中混沌和分形理论的新方法。通过构建调制效果的模拟信号，发现了具有混沌特征的模拟信号，计算了混沌理论的非线性参数和特征值，分析了标本的非线性。通过比较，可以发现结论是Lyapunov指数对较弱的非线性和噪声毫无疑问是敏感的。

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《International Conference on Advanced Electronic Science and Technology》|2017年|610p|共6页
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作者
Hanying Mao; Yuhua Zhang; Hanling Mao; Zhenfeng Huang;
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中图分类 TN-53;
关键词
Nonlinear ultrasonic; Nondestructive testing; Chaos; Lyapunov exponent;

机译：非线性超声波;非破坏性测试;混乱;Lyapunov指数;

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Chaotic characteristics analysis of simulation signal of ultrasonic nonlinear modulation effect

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