ID 原文 译文
49917 为了避免着陆器在着陆过程中落于地势平坦的封闭环境，本文提出了一种基于单幅图像的星表着陆区选择方法。 In order to avoid the lander lagged landed in flat closed environment, this paper proposes a catalog landing zone selection method based on single image.
49918 首先进行障碍检测，并且提取出图像中非障碍区的骨架， First obstacle detection, and extract the skeleton of image China-Africa obstacle area,
49919 然后以骨架三线交点为圆心得到多个具有允许着陆范围的着陆圆， and then get more centered on three skeleton line intersection has allowed scope of landing circle,
49920 最后利用计分加权法从着陆圆的半径、连通性、纹理，以及着陆圆心与障碍物的集群关系四个方面得到最佳着陆圆。 finally using the method of weighted scoring from the landing circle radius, connectivity, texture, and the relationship between landing circle and obstacles of cluster in four aspects:
49921 通过与其他方法的对比实验发现，本文方法能选择出障碍物稀少的区域，能够避免着陆器落入地势封闭的环境。 Compared with other methods of experiment found that the method can choose a few obstacles area, to avoid the lander into relief a closed environment.
49922 在由一个源节点、中继节点、目的节点和窃听节点组成的两跳中继窃听信道模型中，假定各节点均具有能量收集能力，采用"储能—发送"模式工作，即先收集能量，然后再发送数据。 By a source node and relay node and destination node and eavesdropping nodes with two-hop relay eavesdropping channel model, the assumption that each node has energy collecting ability, adopt the "energy storage - send" mode, namely first collect energy, and then send the data.
49923 中继节点采用放大转发方式，目的节点发送人工噪声协同干扰。 Relay nodes use zoom forward way, the destination node sends artificial noise interference.
49924 首先分析得到目的端协同干扰方式下获得正的保密容量的条件; First analysis to get the objective end collaborative jamming modes have been secrecy capacity conditions;
49925 然后给出以最大化保密速率Rs为目标的吸收比例系数ρ和干扰功率分配因子α的迭代优化算法; And then given to maximize secrecy rate Rs as the target of rho and interfere with the absorption ratio are iterative optimization algorithm of power allocation factor alpha;
49926 最后对算法性能进行仿真。 Finally, the simulation algorithm performance.