[1] XIE L, LI Z, ZHOU Y et al. Railway track online detection based on optical fiber distributed large-range acoustic sensing[J]. IEEE Internet of Things Journal, 11, 6469-6480(2024).

[2] ASHRY I, MAO Y, WANG B et al. A review of distributed fiber-optic sensing in the oil and gas industry[J]. Journal of Lightwave Technology, 40, 1407-1431(2022).

[3] DING Z, ZHANG X, ZOU N et al. Phi-OTDR based on-line monitoring of overhead power transmission line[J]. Journal of Lightwave Technology, 39, 5163-5169(2021).

[4] MAHMOUND S S S. Practical aspects of perimeter intrusion detection and nuisance suppression for distributed fiber-optic sensors[J]. IEEE Transactions on Instrumentation and Measurement, 72, 2517311(2023).

[5] LIU S, YU F, HONG R et al. Advances in phase-sensitive optical time-domain reflectometry[J]. Opto-Electronic Advances, 5, 200078(2022).

[6] CHEN Q, LIU T, LIU K et al. An elimination method of polarization-induced phase shift and fading in dual Mach-Zehnder interferometry disturbance sensing system[J]. Journal of Lightwave Technology, 31, 3135-3141(2013).

[7] MA C, LIU T, LIU K et al. Long-range distributed fiber vibration sensor using an asymmetric dual Mach-Zehnder interferometers[J]. Journal of Lightwave Technology, 34, 2235-2239(2016).

[8] WANG G, SONG Q, PENG H et al. Dual-wavelength Michelson interferometer employing time delay estimation for distributed disturbance location[J]. Optical Fiber Technology, 56, 102181(2020).

[9] TENG F, YI D, HONG X et al. Distributed fiber optics disturbance sensor using a dual-Sagnac interferometer[J]. Optics Letters, 44, 5101-5103(2019).

[10] MA Y, SONG Y, SONG Q et al. MI-SI based distributed optical fiber sensor for no-blind zone location and pattern recognition[J]. Journal of Lightwave Technology, 40, 3022-3030(2022).

[11] SONG Q, ZHOU P, PENG H et al. Improved localization algorithm for distributed fiber-optic sensor based on merged Michelson-Sagnac interferometer[J]. Optics Express, 28, 7207-7220(2020).

[12] MA P, SUN Z, LIU K et al. Distributed fiber optic vibration sensing with wide dynamic range, high frequency response, and multi-points accurate location[J]. Optics and Laser Technology, 124, 105966(2020).

[13] MA C, LIU T, LIU K et al. A continuous wavelet transform based time delay estimation method for long range fiber interferometric vibration sensor[J]. Journal of Lightwave Technology, 34, 3785-3789(2016).

[14] LIU K, MA P, JIANG J et al. An S-transform-based positioning method for asymmetric interferometer disturbance sensors[J]. Journal of Lightwave Technology, 37, 3201-3207(2019).

[15] SUN Z, LIU K, JIANG J et al. High accuracy and real-time positioning using MODWT for long range asymmetric interferometer vibration sensors[J]. Journal of Lightwave Technology, 39, 2205-2214(2021).

[16] XIE S, ZOU Q, WANG L et al. Positioning error prediction theory for dual Mach-Zehnder As vibration sensor[J]. Journal of Lightwave Technology, 29, 362-368(2011).

[17] HU X, LIU K, JIN X et al. Wide-frequency-range vibration positioning based on adaptive TQWT for long-distance asymmetric interferometer sensor[J]. Optics and Lasers in Engineering, 175, 108000(2024).

[18] [18] MALLAT S. “Sparse Representations” in A Wavelet Tour of Signal Processing [M]. 3rd ed. Amsterdam: Elsevier, 1999.

[19] [19] DAUBECHIES I, MAES S. A Nonlinear Squeezing of the Continuous Wavelet Transfm Based on Audity Nerve Models [M]ALDROUBI Akram, UNSER Michael. Wavelets in Medicine Biology. Boca Raton: CRC Press, 1996.

[20] DAUBECHIES I, LU J, WU H. Synchrosqueezed wavelet transforms: An empirical mode decomposition-like tool[J]. Applied and Computational Harmonic Analysis, 30, 243-261(2011).

[21] [21] QIN J. Mechanical timevarying fault feature extraction method based on optimized synchrosqueezing S transfm [D]. Wuhan: Wuhan University of Science Technology, 2022. (in Chinese)

          QIN J. Mechanical timevarying fault feature extraction method based on optimized synchrosqueezing S transfm [D]. Wuhan: Wuhan University of Science Technology, 2022. (in Chinese)