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用于卫星合作目标的角反射器阵列的设计 ,国际上普遍采用的是圆形布阵方案。采用正六边形密接布阵设计 ,获得了轻量化、高稳定性的卫星激光合作目标。角反射器阵列尺寸为 2 80mm× 16 0mm ,重量小于 2kg ,共有38个角反射器单元 ;单元底面加工成正六边形 ,对边距为 31 5mm ,有效通光口径为 30mm ,高为 2 5mm ;考虑到星载角反射器的速差效应及其补偿要求 ,经计算机数值模拟 ,将单个角反射器的综合角度误差确定为 5°± 0 5″ ,并在加工时对每个直二面角人为引入约 1″的角度误差。该设计虽然在一定程度上增加了阵列基座的加工难度 ,但计算表明 ,在设计尺寸一定的情况下 ,与传统圆形布阵相比 ,合作目标阵列的重量减轻 15 5 % ,而有效反射系数及回波光子数均提高 10 3%。
The design of corner reflector arrays for satellite cooperation has been widely adopted in the world as a circular array. The use of hexagonal close-fitting array design, access to the lightweight, high stability satellite laser cooperation goals. Corner reflector array size of 2 80mm × 160mm, weighs less than 2kg, a total of 38 corner reflector unit; unit bottom processed into a regular hexagon, the margin of 31 5mm, the effective aperture of 30mm, height of 2 5mm Considering the velocity difference effect and its compensation requirements of the spaceborne corner reflector, the comprehensive angular error of the single corner reflector is determined to be 5 ° ± 0 5 “by computer numerical simulation, and each straight surface Angular human introduction of about 1 ”angle error. Although the design has increased the processing difficulty of the array base to some extent, the calculation shows that the weight of the cooperation target array is reduced by 15.5% compared with the conventional circular array when the design size is fixed, and the effective reflection Both the coefficient and the number of echo photons increased by 10 3%.