Fig. 1. Working principle diagram and physical device of laser radar cross section of cooperative target with microspheres

Fig. 2. Echo signal relative intensity spectra of 532 nm laser with different emission power materials. (a) RCC material; (b) black aluminum sheet

Fig. 3. Relative intensity spectral lines of three kinds of material cooperative targets with microspheres are relative to 532 nm laser under different transmit powers. (a) SiO₂; (b) K9 glass; (c) TiO₂-BaO-SiO₂

Fig. 4. Relationship curves between back laser radar cross section of different materials cooperative target with microspheres and transmit power of laser. (a) First material; (b) second material