Fig. 1. Field of view of circumferential laser fuze

Fig. 2. Ultra low altitude detection model of circumferential laser fuze

Fig. 3. Laser echo waveforms at different altitudes

Fig. 4. FWHM and delay of laser echo pulse at different altitude

Fig. 5. Inherent relative error on height detection of laser fuze

Fig. 6. Laser echo waveforms with different pitch attitudes

Fig. 7. Parameters of laser echoes with different pitch attitudes

Fig. 8. BRDFs under the conditions of 2 and 3

Fig. 9. Peak power of echoed laser pulse received by laser fuze