消除采样累加过程中的周期性噪声对DTS精度的影响

Both white noise and periodic noise exist in distributed optical fiber temperature measurement systems. Traditional sampleaccumulative averaging method can only eliminate white noise. In this paper, a method of accumulating points in the sampling period during the sampling and accumulating process was proposed to judge and filter out the periodic signals in the sampling period. Temperature measurement experiments indicate that the accuracy of the DTS is greatly improved by setting the criterion to eliminate the periodic noise during the accumulation process.

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丁晔, 须雷, 赵玉灿, 邵通广, 刘鹏, 刘东超, 熊慕文. 消除采样累加过程中的周期性噪声对DTS精度的影响[J]. 半导体光电, 2019, 40(2): 299. DING Ye, XU Lei, ZHAO Yucan, SHAO Tongguang, LIU Peng, LIU Dongchao, XIONG Muwen. Elimination of Effect of Periodic Noise on DTS Accuracy in Sampling Accumulation[J]. Semiconductor Optoelectronics, 2019, 40(2): 299.

消除采样累加过程中的周期性噪声对DTS精度的影响

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