月面复杂地形表层采样可采点确定方法

表层采样是获取地外天体特性的重要手段，是目前原位探测与采样返回样品获取的重要方式。实施月球表层采样过程中，月面复杂地形将对大尺度采样器工作带来约束。结合一类大尺度表层采样器，分析了月面复杂地形的影响，提出了表层采样的可采样充分条件，构建了以可视区分区、分区延伸、局部平均法向量稀疏、基点包覆检测相结合的并行可采点确定方法。仿真结果表明，该方法可准确确定复杂地形下表层采样可采点，分区并行计算可有效提升可采点的确定效率。

Lunar surface sampling point selection for uneven terrain

Surface sampling,applied in situ exploration and sample return mission at this stage,is an important method of acquiring extraterrestrial body characteristics. For big sampler, some constraints are introduced into lunar surface sampling process under uneven terrain. The influences of uneven terrain were analyzed, considering a class of big scaled sampler. The sufficient condition of adoptable surface sampling was proposed, and the establishing method of adoptable point which contains visual subarea division, subarea extension, local average normal vector sparse and base point sphere detection was constructed. Numerical simulations demonstrate the effectiveness of the establishing approach, and the speediness of subarea and parallel computing.