Many sequentially observed functional data objects are available only at the times of certain events. For example, the trajectory of stock prices of companies after their initial public offering (I…
We demonstrate a short-time long distance distributed high-temperature sensing by non-local Haar transform (NLH) in optical frequency domain reflectometry (OFDR). By searching similar pixels across…
We present a long distance distributed strain sensing in optical frequency domain reflectometry (OFDR) by shape-adaptive principal component analysis Block-Matching three-dimensional filter (BM3D-S…
Ghost peaks refer to these peaks on backscattering trace measured by a reflectometer similar to Fresnel reflection peaks appearing at the position of non-reflection events in optical fiber or optic…
In extreme environments such as abysmal sea and deep space, the characteristics of low-temperature, vacuum, electromagnetic interference will significantly affect the performance of measuring instr…
We present a novel distributed high sensitivity static strain sensing method based on differential relative phase in optical frequency domain reflectometry (OFDR). By performing two separate tests …