[2] FROGGATT M，MOORE J. High-spatial-resolution dis-tributed strain measurement in optical fiber with Rayleigh scatter[J]. Applied Optics，1998，37（10）: 1735-1740.

[3] KREGER S T，GIFFORD D K，FROGGATT M E，et al. High resolution distributed strain or temperature measure-ments in single and multi-mode fiber using swept-wave-length interferometry[C]//Optical Fiber Sensors, Can-cun，Mexico: SPIE，2006: ThE42.

[4] DING Z，LIU T，MENG Z，et al. Improving spatial res-olution of optical frequency-domain reflectometry against frequency tuning nonlinearity using non-uniform fast Fourier transform[J]. The Review of Scientific In-struments，2012，83（6）: 066110.

[5] SONG J，LI W H，SONG J，et al. Long-range high spa-tial resolution distributed temperature and strain sensing based on optical frequency-domain reflectometry[J]. IEEE Photonics Journal，2014，6（3）: 1-8.

[6] KREGER S T，KLEIN J W，RAHIM N A A, et al. Dis-tributed Rayleigh scatter dynamic strain sensing above the scan rate with optical frequency domain reflectometry [C]//Fiber Optic Sensors and Applications XII，SPIE， 2015，9480: 25-31.

[7] NAEEM K， KWON Y S， CHUNG Y， et al. Bend-loss-free distributed sensor based on Rayleigh backscattering in Ge-doped-core PCF[J]. IEEE Sensors Journal，2017（5）: 1-8.

[8] FENG K，CUI J，JIN Y，et al. Enhancement of the per-formance and data processing rate of an optical frequen-cy domain reflectometer distributed sensing system us-ing a limited swept wavelength range[J]. Sensors，2018， 18（10）: 3480.

[9] FENG K，CUI J，DANG H，et al. Investigation of a sig-nal demodulation method based on wavelet transforma-tion for OFDR to enhance its distributed sensing perfor-mance[J]. Sensors，2019，19（13）: 1-15.

[11] MOORE E D，MCLEOD R R. Correction of sampling errors due to laser tuning rate fluctuations in swept-wave-length interferometry[J]. Optics Express，2008，16（17）: 13139-13149.

[12] GUO Z，YAN J，HAN G，et al. High sensing accuracy realization with millimetre/sub-millimetre resolution in optical frequency domain reflectometer[J]. Journal of Lightwave Technology，2022，40（12）: 4050-4056.

[13] VENDITTOZZI C，CIRO E，FELLI F，et al. Static and dynamic weighing of rolling stocks by mean of a custom-ized FBG-sensorized-patch[J]. International Journal of Safety and Security Engineering，2020，10（1）: 83-88.

[14] VENDITTOZZI C，CIRO E，FELLI F，et al. Static and synamic weighing of rolling stocks by mean of a custom-ized FBG-sensorized-patch[J]. International Journal of Safety and Security Engineering，2020，10（1）: 83-88.

[15] KERSEY A D，DAVIS M A. Fiber grating sensors[J]. Journal of Lightwave Technology， 1997， 15 （8）: 1442-1463.

[17] KERSY A D，BERKOFF T A，MOREY W W. Fiber-op-tic Bragg grating strain sensor with drift-compensated high-resolution interferometric wavelength-shift detec-tion[J]. Optics Letters，1993，18（1）: 72-74.