ID 原文 译文
2123 最后，通过设定迁移三元组完成迁移映射，实现高效交换机迁移。 Finally, we set mi-gration triplet to complete the migration mapping and achieve the efficient switch migration.
2124 仿真结果表明，该策略可以有效降低控制器响应时间，减小迁移代价并提高控制器吞吐量，同时将负载均衡率保持在较高水平，具有良好的拓扑适应性。 Simulation results show this mechanism could lower controller response time effectively, reduce migration cost and improve controller through puts. Be-sides, it keeps high load balancing rate and has good topology adaptability.
2125 针对传统光学摄像头和无线技术的手势识别方法受光照环境影响和空间纵向、横向特征不全的问题，该文提出一种基于调频连续波(Frequency Modulated Continuous Wave，FMCW)雷达信号的双流融合神经网络(Two-Stream Fusion Neural Network，TS-FNN)手势识别方法。 To deal with the problem of easily being affected by illumination environment of the traditional optical camera based hand gesture recognition method and the incomplete spatial and lateral characteristics of the wireless based hand gesture recognition method, this paper proposes a frequency modulated continuous wave (FMCW)radar signal basedtwo-stream fusion neural network (TS-FNN)for hand gesture recognition.
2126 首先，利用二维快速傅立叶变换(Fast Fourier Transform，FFT)求取中频信号的频谱，估计手势的距离和速度，并利用多重信号分类 (Multiple Signal Classification，MUSIC)方法计算角度。 Firstly, the spectrum of the IF signal is obtainedby two-dimensional Fast Fourier Transform (2D-FFT), the range and speed of the gesture are estimated, and the angle iscalculated by the Multiple Signal Classification (MUSIC)method.
2127 其次，利用这三维参数在时间上的累积，将一个手势动作映射为 32 帧距离-速度矩阵图和角度时间图。 Secondly, using the accumulation of three-dimensionalparameters in time, a gesture action is mapped to a 32-frame range-speed matrix diagram and an angular-time map.
2128 最后，建立TS-FNN 进行手势特征提取和特征融合。 Finally, TS-FNN is established for gesture feature extraction and classification.
2129 实验结果表明，TS-FNN 方法与传统卷积神经网络相比，手势的平均识别准确率提升了约 5% 。 The experimental results show that compared with theexisting methods, the TS-FNN method improves the average recognition accuracy by about 5% .
2130 针对多径衰落信道下的载波同步问题，通过分析修正的经典估计器不能同时兼顾估计范围和估计精度的缺陷，提出了一种两步频偏估计算法。 Aiming at the carrier synchronization problem in multipath channels, a two-step estimation algorithm is proposed by analyzing the defects of the modified classical estimators that can't take account of the range and the accuracy of the estimation simultaneously.
2131 对于 iNET 系统采用的 SOQPSK-TG 信号，利用前导码的周期性，对多径衰落信道下的频偏估计进行了研究。 For SOQPSK-TG signal used in iNET system, the frequency offset estimation in multipathfading channels is studied by using the periodicity of the preamble.
2132 首先在保持 iNET 帧结构导频开销不变的前提下，对前导码结构进行改进; First, the structure of the preamble is improved, keeping the pilot overhead of iNET frame structure unchanged.