ID 原文 译文
58508 时分双工的大规模多输入多输出( MIMO) 系统中，信道估计和互易性校准决定了系统能否有效利用信道互易性. In time division duplex massive multiple-input multiple-output ( MIMO) systems，the channelestimation and reciprocity calibration determine whether the system can effectively utilize channel reci?procity.
58509 为了分析信道估计对系统性能的影响，推导出信道估计的均方误差，并得出了单用户 MIMO 系统的上下行信道容量的闭合表达式. In order to analyze the effect of channel estimation on the system performance，the mean squareerror of channel estimation is deduced and the closed-form expression of uplink and downlink channel ca?pacity in single-user MIMO system is obtained.
58510 此外，为了减小在线校准的误差，根据互耦的性质提出了新的互耦干扰模型，并借助基站具有的功率控制以及协调功能，设计出了一种能够减轻互耦干扰的校准方案. To reduce the error of on-line calibration，a new mutualcoupling interference model was proposed by using the property of mutual coupling. With the help of basestation power control and coordination functions，a calibration scheme was designed to reduce the mutualcoupling interference.
58511 仿真结果表明，该方案具有可行性. Simulations verify the feasibility of this scheme.
58512 为了提高水龙头等工件的抛光效率，提高抛光精度及质量，设计了新型多工位工作岛式抛光机器人. In order to improve the efficiency of the workpiece such as faucet polishing and improve thepolishing precision，quality，a new multi station working island type polishing robot was designed.
58513 为使该机器人结构更加紧凑，在建立抛光机器人运动学和逆运动学方程基础上，分析了该机器人的灵活加工空间，提出采用多目标的粒子群法对抛光机器人的多个布局参数进行优化分析.该方法同时对抛光机器人的 2 个重要布局参数进行了优化，并应用粒子群法计算该机器人抛光不同大小工件时各自由度的最大关节空间. Inorder to make this robot structure more compact，based on the establishment of the polishing robot’skinematics and inverse kinematics equations，further analysis of robot flexible working space was carriedout，multi-objective particle swarm optimization method was also proposed to analyze and optimize themultiple layout parameters of this robot，then the various degree of freedom joint space was obtained byparticle swarm optimization method while robot polishing deferent size workpiece. Finally，the dexterousmachining points of the polishing robot is analyzed，which is verified that the optimized layout parametersis suitable.
58514 最后通过分析抛光机器人在不同工作平面上的灵活加工点验证了优化结果的正确性. Through the above analysis.
58515 实验结果表明，优化布局后的机器人完全能满足指定工件的抛光加工需求，并有较大的加工余量，获得了较好的实验抛光效果. It is shown that the robot with optimized layout parameters canfully meet the specified workpiece polishing requirements，and there is a large machining allowance，bet?ter experimental polishing effect was obtained finally
58516 针对传统人体动作识别方法存在的硬件成本高、系统搭建复杂等问题，提出了一个利用普通的商用 WiFi 设备的人体动作识别系统，通过分析 WiFi 信号的信道状态信息( CSI) 识别家居环境中 8 个常见的人体动作. Aiming at the problems of high hardware cost and complex system construction in traditionalhuman body activity recognition methods. The human activity recognition system using commercial wire?less fidelity ( WiFi) devices was presented，utilizing the WiFi signal channel state information ( CSI) toidentify eight familiar activities.
58517 为了获取相同时刻的 CSI 测量值，提出针对不同时间间隔的 CSI 序列进行插值处理的方法. To obtain CSI measurements at the same time，a new method of interpo?lating CSI sequences for different time intervals was proposed.