ID 原文 译文
46636 从该准则中提取出容积点及其相应权值的一般计算方法，并利用该计算方法给出非线性卡尔曼滤波框架下高阶球面单形—径向容积求积分卡尔曼滤波的具体计算步骤。 And then, the HDSSRCQKF was achieved under the nonlinear Kalman filtering frame-work using the above method.
46637 数值仿真实验结果表明，所提算法具有比高阶容积卡尔曼滤波更高的估计精度，在信道估计与均衡、语音增强和混沌通信等领域具有一定的应用价值。 The numerical simulation results indicate that HDSSRCQKF has a higher accuracy com-pared to the existed high-degree cubature Kalman filter, that verifies the effectiveness of the proposed algorithm.
46638 在多控制器 SDN 虚拟化环境中，以最小化控制通路平均时延、控制器负载失衡度和映射开销为目标，分别建立多控制器部署问题和虚拟 SDN 映射问题的数学模型，提出一种多控制器条件下区分 QoS 的虚拟 SDN 映射方法。 In SDN virtualization environment under multiple controllers, with the goal of minimum the mean delay be-tween control paths, the load imbalance of controllers, and the cost of embedding, mathematical models of the controller placement and the virtual SDN embedding problem were built, and a virtual SDN embedding method with differentiated QoS under multiple controllers was proposed.
46639 仿真结果表明该方法能够满足不同用户对虚拟 SDN 服务质量的需求，保持多控制器的负载均衡，提高了映射成功率和收益开销比。 The simulation results show that the proposed algorithm can satisfy various virtual networks QoS for users, keep load balance between controllers and increase the acceptance ratio and the revenue/cost ratio.
46640 DVB-T2(digital video broadcasting-second generation terrestrial)系统采用一种具有 C-A-B 特殊结构的前导符号用于时频同步。 DVB-T2 (digital video broadcasting-second generation terrestrial) system adopted a preamble, with a specialC-A-B structure, to accomplish time-frequency synchronization.
46641 目前，已有的基于前导符号的同步算法仅利用其中 C-A 与 B-A 之间的相关性来实现时频同步，而忽略了 A 内部的共轭对称性。 All existing preamble based synchronization algorithms only utilized the correlation between C and A or B and A, neglecting the conjugate symmetry character within A.
46642 基于该共轭对称性质，提出一种新的镜像乘积同步算法，用于实现前导符号的检测与时频同步。 By using this character, a new synchronization method was proposed to make detection probability higher and synchronization error smaller.
46643 通过在 AWGN(addictive white Gaussian noise)信道和 TU6(typical urban)信道 30 km/h 移动速度下对所提算法进行蒙特卡洛仿真， Monto Carlo simulations were carried out in AWGN (addictive white Gaussian noise) channel and TU6(typical urban) channel with velocity of 30 km/h.
46644 并与已有同步算法相比较，结果表明所提算法的检测概率明显提高，时域同步和频域同步的均方误差均明显降低。 Compared with existing synchronization methods, both higher detection probability and smaller mean square error in time-frequency synchronization is achieved.
46645 现有可搜索加密方案通常索引的构建、检索效率不高，数据节点的维护不便，难以适应分布式密文检索要求。 The existing encryption schemes were usually poor of index construction and maintenance, which was difficult to meet the retrieval requirements for distributed ciphertext.