Fig. 1. Principle of triangular frequency modulation continuous wave ranging

Fig. 2. Laser/millimeter wave composite detection system model

Fig. 3. Schematic diagram of emission control sequence of laser/millimeter wave composite detection

Fig. 4. Schematic diagram of detection field of view distribution of laser/millimeter wave composite detection system

Fig. 5. Schematic diagram of AD acquisition and pre-storage model

Fig. 6. Processing flow diagram of laser detection echo signal

Fig. 7. Processing flow diagram of millimeter wave echo signal

Fig. 8. Flow diagram of fusion decision

Fig. 9. Matrix distribution diagram of simulation target distance and velocity

Fig. 10. Schematic diagram of range spectrum in up and down sweep frequency band of echo beat signal of target in single cycle

Fig. 11. Distribution diagram of range velocity matrix of the range spectrum solution in the up and down sweep frequency bands

Fig. 12. Schematic diagram of target echo signal collected by laser detection system

Fig. 13. Energy variation curves of laser echo at different distances

Fig. 14. Schematic diagram of laser ranging accuracy at different distances