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分析了ROFDR分布式光纤温度传感器和ROTDR分布式光纤温度传感器的理论模型、算法和各自的特点 ,指出ROFDR分布式光纤温度传感器可以降低噪声、获得高的信噪比、测试时间短 ,和ROTDR分布式光纤温度传感器相比有明显的优势。最后对比了ROFDR分布式光纤温度传感器的仿真结果和别人获得的ROTDR分布式光纤温度传感器的实测结果 ,显示出ROFDR分布式光纤温度传感器非常低的温度误差和非常高的空间分辨率 ,也表明了ROFDR的诱人前景
The theoretical models, algorithms and their respective characteristics of ROFDR distributed optical fiber temperature sensor and ROTDR distributed optical fiber temperature sensor are analyzed. It is pointed out that ROFDR distributed optical fiber temperature sensor can reduce noise, obtain high signal-to-noise ratio, short test time and ROTDR distribution Compared to optical fiber temperature sensor has obvious advantages. Finally, the simulation results of the ROFDR distributed optical fiber temperature sensor and the measured results of the ROTDR distributed optical fiber temperature sensor obtained by others show that the very low temperature error and the very high spatial resolution of the ROFDR distributed optical fiber temperature sensor also indicate ROFDR attractive prospects