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Chaos-Based Weak Signal Detection Method and Virtual Instrument-Based Weak Ultrasonic Signal Detecting System

机译：基于混沌的微弱信号检测方法及基于虚拟仪器的微弱超声信号检测系统

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摘要

Through analyzing the intermittent chaos mechanism of Duffing oscillator, it was found that the oscillator phase transform is sensitive to the small signal having the tiny angular frequency difference, but insensitive to the random noise and the larger interference signal having larger angular frequency difference. A new weak signal detecting method is advanced hereby. The detectable signal-to-noise ratio is increased. The virtual instrument-based weak ultrasonic signal detecting system has been built up. The validity of this weak signal detecting method has been verified.

机译：通过分析Duffing振荡器的间歇性混沌机制，发现振荡器相位变换对角频率差较小的小信号敏感，而对随机噪声和角频率差较大的大干扰信号不敏感。从而提出了一种新的弱信号检测方法。可检测的信噪比增加。建立了基于虚拟仪器的弱超声信号检测系统。这种弱信号检测方法的有效性已得到验证。

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《Instrumentation Science and Technology Vol.3》|2002年|p.118-123|共6页
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作者
Jiang Wanlu; Zhang Shuqing;
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正文语种
中图分类机械、仪表工业;
关键词
duffing oscillator; intermittent chaos; weak signal detecting; virtual instrument;

机译：达芬振荡器;间歇性混乱;微弱信号检测;虚拟仪器;

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4. Chaos-Based Weak Signal Detection Method and Virtual Instrument-Based Weak Ultrasonic Signal Detecting System [C] . Jiang Wanlu, Zhang Shuqing International Symposium on Instrumentation Science and Technology . 2002

机译：基于混沌的弱信号检测方法和基于虚拟仪的弱超声波信号检测系统
5. Development of combined GPS L1/L2C acquisition and tracking methods for weak signals environments. [D] . Gernot, Cyrille. 2009

机译：针对弱信号环境的GPS L1 / L2C组合采集和跟踪方法的开发。
6. Stochastic Resonance in an Underdamped System with Pinning Potential for Weak Signal Detection [O] . Haibin Zhang, Qingbo He, Fanrang Kong 2015

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7. New detection method of very weak high-frequency wave signals of elctrocardiogram. A study by using subtraction method. [O] . HIDETAKA TOCHIGI 1990

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8. Optimal Quantization and Fusion in Multi-Sensor Systems for the Detection of Weak Signals in Dependent Noise. [R] . Chau, Y. A., Geraniotis, E. 1989

机译：多传感器系统中最优量化与融合检测相关噪声中的弱信号。

Chaos-Based Weak Signal Detection Method and Virtual Instrument-Based Weak Ultrasonic Signal Detecting System

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