Chaos Theory Apply In High Voltage Transmission Line Defect Detecting

摘要：

To solve the problem of echo signal which is very weak, the Duffing equation and the method of detecting weak signal with chaos theory were studied. The signal would be annihilated by strong electromagnetic noises when detecting defects in high voltage transmission lines using electro-magnetic acoustic transducer (EMAT). A chaotic detecting system of weak signal was designed which combining with the technology of filter and the technology of autocorrelation. Simulink was used to simulate the new detecting system. The experimental result showed that the system could detect the useful ultrasound signal under the background of strong electromagnetic noises more effectively. It would improve the detecting signal-noise ratio (SNR) of system further.

关键词： EMAT chaos theory weak signal detecting the technology of autocorrelation simulink SNR

作者: Jin Jidong Sun Haihua Cao Teng Lin Shanming

作者单位: College of Computer and Information, Hohai University, Changzhou, China Jiangsu Key Laboratory of Po College of Computer and Information, Hohai University, Changzhou, China Department of Information Science & Electronic Engineering, Zhejiang University, Hangzhou, China

会议类型: 国际会议

会议名称: 2010 IEEE 10th International Conference on Signal Processing(第十届信号处理国际会议 ICSP 2010)

会议地点: 北京

会议语种:英文

页码: 17-21

在线出版日期: 2010-08-24（万方平台首次上网日期，不代表论文的发表时间）