摘要
分析了光频域喇曼背向散射 (ROFDR )的理论模型 ,指出了它的局限性 通过把玻色 爱因斯坦因子作为温度的函数引入到分析中来完善光频域喇曼背向散射(ROFDR)的理论模型 相对于测试时间来说 ,温度对时间的变化率很小 ,认为近似不变 ,所以通过研究频域和时域的信号关系给出了υ域和z域间的变换关系 最后给出了基于此模型的全分布式光纤温度传感器系统的仿真结果 ,并给出了对计算结果的误差修正公式 。
The theoretical model of Raman optical fiber frequency domain reflectometry(ROFDR) which is brought forward in these years is analyzed,and defect of the model is found.The theoretical model is consummated by regarding the Bose Einstein factor as the function of temperature.Because of the temperature converting slow,the relation between frequency and time is studied,and a model between the υ domain and z domain is given.The emulational result and the corrected result are presented in the end,and the error is less than the reported.
出处
《光子学报》
EI
CAS
CSCD
北大核心
2002年第10期1261-1265,共5页
Acta Photonica Sinica
