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- W2045239829 startingPage "365" @default.
- W2045239829 abstract "동기식 고속 광전송망에서 망간 delay보상을 통한 동기제어는 매우 중요하다. 본 연구에서는 광선로의 길이에 따른 time delay를 보상하기 위하여 Rayleigh 산란광을 이용한 OTDR방식의 delay 측정장치를 제작하여 평균화 횟수와 광펄스의 peak power에 따른 파형변화를 관찰하고 기존에 활용되고 있는 방식과의 정확도에 대한 비교측정을 통해 실제 시스템에 적용타당성에 대한 검증실험을 실시한 결과 최대 0.06usec 이내의 측정오차와 0.021usec의 측정표준편차로서 이동통신 광중계기와 기지국 장비간 delay 제어에 적용이 가능함을 확인하였다. It is very important to control synchronization by inter-network delay compensation in high speed synchronous optcial transmission network systems. In this study we designed a delay measurement system based on OTDR using Rayleigh backscatterer in order to compensate for time delay due to the length of optical fiber line. We observed waveform variations on both averaging time and peak power of laser pulse. Finally, we executed experimental demonstration on its accuracy and test repeatability by comparison to the methods practically used in the industry. Experimental results show maximum error of 0.06usec and standard deviation of 0.021usec, which means it's possibly applied to delay control system for mobile repeaters and stations." @default.
- W2045239829 created "2016-06-24" @default.
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- W2045239829 date "2012-05-30" @default.
- W2045239829 modified "2023-09-27" @default.
- W2045239829 title "Measurement of Time Delay in Optical Fiber Line Using Rayleigh Scattering" @default.
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- W2045239829 doi "https://doi.org/10.7840/kics.2012.37b.5.365" @default.
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