Variance based identification of phase transition in Duffing Oscillator for weak signal detection

摘要：

This paper studies the detection of weak signal detection using a Duffing Oscillator, which is sensitive to periodic signals but insensitive to noises. The system transits from chaotic to great periodic motion when coupled to the weak periodic signal to be detected. To efficiently determine the phase transition, a novel numerical criterion is proposed based on the sharp increase of variance when phase change happens. Simulation results verified the effectiveness of this method.

关键词： weak signal detection Duffing Oscillator phase transition variance

作者: Yuan Chang Chun-wen Li Yi Hao

作者单位: Department of Automation, Tsinghua University, Haidian District, Beijing, China,100084 Department of Automation, Tsinghua University, Haidian District, Beijing,China, 100084 Datang Microelectronics Technology Co., Ltd. No. 6 YongJia North Road, Haidian District, Beijing,Chi

会议类型: 国际会议

会议名称: 4th International Conference on Measuring Technology and Mechatronics Automation(第四届检测技术与机电自动化国际会议 ICMTMA 2012)

会议地点: 三亚

会议语种:英文

页码: 354-358

在线出版日期: 2012-01-06（万方平台首次上网日期，不代表论文的发表时间）