基于Duffing振子的微弱信号检测
Weak signal detection based on Duffing oscillator
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摘要: 针对相轨迹图是一种无明显规律的阵发混沌现象,仅从相轨迹图很难进行目测识别,因而无法直接用于工程实践的问题,在基于Duffing振子的微弱信号检测中,以Hu式不变矩作为定量指标对相轨迹图进行识别,从而快速得出一个准确的量化测度.该方法便于计算机自动识别,具有工程实践应用价值.Abstract: Aiming at the problem that it was difficult to visual test phase trajectories form as a law intermittency phenomenon,and which could not be used in engineering practice directly.The phase trajectories was identified through Hu type invariant moment as quantitative indicator in the detection of weak signal characteristics based on the Duffing oscillator.A rapid and accurate quantitative measure was obtained to facilitate the automatical recognization of computer which could be applied to engineering practice.
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[1]
张健,王竹萍,吕宁,等.基于混沌理论的检测进展[J].电子器件,2005,28(2):307.
-
[2]
李月,杨宝俊.混沌振子检测引论[M].北京:电子工业出版社,2004.
-
[3]
张琪昌,王洪礼,竺致文,等.分岔与混沌理论及应用[M].天津:天津大学出版社,2005.
-
[4]
Misra S,Chopra S.Phase stability via nonlinear optimization:A case Study[J].The Leading Edge,2010,29(11):1338.
-
[5]
徐艳春.基于混沌振子的微弱光电信号检测技术研究[D].哈尔滨:哈尔滨工业大学,2010.
-
[6]
Liu X C,Liu X L.Weak signal detection research based on Duffing oscillator used for downhole communication[J].J of Comp,2011,6(2):359.
-
[7]
何金群.基于Duffing振子的低速重载设备故障诊断方法及应用[D].北京:北京工业大学,2009.
-
[8]
丁明跃,常金玲,彭嘉雄.不变矩算法研究[J].数据采集与处理,1992,7(1):1.
-
[9]
万书亭,彭学志.发电机转子轴心轨迹形状自动识别方法的研究[J].华北电力大学学报,2004,31(5):26.
-
[10]
万书亭,李永刚,李和明.基于不变矩特征和新型关联度的轴心轨迹自动识别[J].热能动力工程,2005,20(3):239.
-
[11]
李亚峻,李月,卢金,等.微弱信号混沌检测系统混沌阈值的确定[J].吉林大学学报:信息科学版,2004,22(2):106.
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