Fig. 1. Vibration detection principle of grating array

Fig. 2. Schematic layout of grating array sensing optical cable for aircraft type identification

Fig. 3. Flow chart of aircraft type identification

Fig. 4. Schematic layout of vibrating optical cables under west runway of airport smart runway system

Fig. 5. Detailed layout of vibration sensing optical cable under pavement

Fig. 6. Detailed layout of vibration sensing optical cable under pavement

Fig. 7. Effective measurement area impulse response that can feed back Δt information

Fig. 8. Δt information derived from effective measurement area during passage of B738