Airborne cube corner retro-reflector array

Dome-like structure are extensively used in low-orbit target and it has the disadvantages of small remote angle and large blind zone.Based on the research of the cube corner prism and the allowable variation range of incident angle,we designed a airborne laser retro-reflector device with a dimension of 119 mm×88.8 mm,composing of 15 cube corner prisms.The undersurface of the cube corner retro-reflector was cut into regular hexagon with 15.5 mm side length and 26.87 mm distance of opposite edges.The clear aperture and the height of the cube corner are 25 mm and 19 mm respectively.Considering the effect of speed difference and compensation requirements,the designed maximum angle error of cube corner retro-reflector was 5″,and the maximum error of surface profile was 5″.Compared with the single-layer corner reflectors,the allowable range of incident angles was increased and the blind zone of low-orbit target was reduces significantly.