| 基于改进型振子差分的微弱正弦信号检测 |
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| 作者单位： | ;1.河南师范大学物理与电子工程学院;2.南阳理工学院电子与电气工程学院 |
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| 摘 要： | 在信息检测领域,微弱信号检测是目前的研究热点之一.为了检测更低信噪比下的纳伏级微弱正弦信号,综合考虑混沌系统检测信号的灵敏度和工作稳定性2方面,建立了改进型双振子差分检测模型.通过振子差分对相空间中的周期部分和共模噪声的抑制特性,利用差分波形图检测微弱正弦信号.仿真实验结果表明:改进型的差分振子可以更好地对微弱正弦信号进行检测,且该方法具有稳定性高、灵敏度高、直观、易于实现等优点.
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| 关 键 词： | 混沌 双振子差分 微弱信号检测 |
Weak Sine Signal Detection based on Improved Double Differential Oscillators |
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| Institution: | ,College of Physics and Information Engineering,Henan Normal University,School of Electronic and Electrical Engineering,Nanyang Institute of Technology |
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| Abstract: | In the information detection field,weak signal detection is one of the hot issues in the current study.In order to detect the lower SNR nv-level weak sine signal,considering the sensitivity of detection signals and working stability of chaotic systems,a detection model of improved double differential oscillators was built with differential oscillators restrain to the cycle part of the phase space and Common-mode noise,detecting weak sine signals by the differential waveform.Simulation results show that:the improved differential oscillators can detect weak sine signals better,and the method has the advantage of high stability,high sensitivity,intuitive,and easy to realize,etc. |
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| Keywords: | chaos double differential oscillators weak signal detection |
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