Fig. 1. Schematic of fiber one-way time delay fluctuations measurement

Fig. 2. Simulated proportionality coefficient with different temperature ranges via 150 km fiber

Fig. 3. Simulated proportionality coefficient with different wavelengths difference via 150 km fiber

Fig. 4. Experiment on one-way fiber delay fluctuations measurement

Fig. 5. Measured data of transfer time delay difference with dual-wavelength via 75 km fiber

Fig. 6. Kalman data of transfer time delay difference with dual-wavelength via 75 km fiber

Fig. 7. One-way transfer time delay with single-wavelength via 75 km fiber. (a) True value, (b) Kalman value

Fig. 8. Simulated proportionality coefficient with wavelengths difference at 22.2 nm via 75 km fiber