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提出一种可以测量１米以上绝对距离的光纤干涉测距系统。采用两部分干涉结构，分别对靶标进行定位及光程调谐和对距离进行测量。通过引入已精确标定的光纤进行光程倍增以扩大系统的动态范围。对系统的信号处理方法进行了初步讨论，并给出系统仿真的结果
An optical fiber interferometric distance measuring system can measure the absolute distance above 1 meter. The two-part interference structure is used to locate the target and tune the optical path and measure the distance. Extend the dynamic range of the system by introducing optical path doubling with precisely calibrated optical fibers. The signal processing method of the system is discussed preliminarily, and the result of system simulation is given