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Measuring breakpoints and impedance mismatch for dielectric transmission lines by using correlation method of chaotic signals

Xu Hang Wang An-Bang Han Xiao-Hong Ma Jian-Yi Wang Yun-Cai

Measuring breakpoints and impedance mismatch for dielectric transmission lines by using correlation method of chaotic signals

Xu Hang, Wang An-Bang, Han Xiao-Hong, Ma Jian-Yi, Wang Yun-Cai
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  • Received Date:  23 August 2010
  • Accepted Date:  02 November 2010
  • Published Online:  15 September 2011

Measuring breakpoints and impedance mismatch for dielectric transmission lines by using correlation method of chaotic signals

  • 1. Institute of Optoelectronic Engineering, Dept. of Physics & Optoelectronics, Taiyuan University of Technology, Taiyuan 030024, China

Abstract: We demonstrate experimentally a method to measure breakpoints and impedance mismatch for dielectric transmission lines by using broadband chaotic signals. Chaotic signal serving as a probe signal is obtained from the chaotic laser diode with optical feedback. Correlation method can realize breakpoint location, impedance estimation, and live test. Experimental results show that the location deviation is less than 1%, the impedance error is within the nominal rating, and interference margin is about 48 dB for 2 MHz square pulse signal on wire.

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