| ID | 原文 | 译文 |
| 12884 | 文章设计并实现了一种通过接收处理多输入多输出(multiple^ input multiple-output, MIMO)信号幅度识别无线路由器的方法，该方法通过采集无线路由器的信道状态信息(channel state information, CSI)，并对CSI的幅度数据进行预先平滑和去噪处理，然后把预处理后的幅度数据作为设备的指纹特征，最后通过机器学习的算法进行分类和识别。 | The man work of the paper is to design and implement a method for identifying wireless routers through receiving and process ing multiple input multiple output (MIMO) signal amplitudes. This method collects channel state information of wreless routers, pre-smooths and denoses the amplitude data of channel state informaton, and then use the pre-processed ampltude data as the fngerprnt feature of the device, and finally is classfied and identified by the machine learnng algorthm. |
| 12885 | 实验采用CNN对10台商用无线路由器进行分类和识别，准确率达到96%以上，证明了使用CSI来识别无线路由器是可行的。 | The experiment used CNN to classfy and identfy 10 commercial wireless routers with an accuracy rate of over 96% , and proved that us8ng CSI to identfy wreless routers is feasible. |
| 12886 | 为提高反射面天线的照射均匀性，利用波束赋形技术设计一款工作在15 GHz的高性能偏置反射面天线。 | In order to improve the radiation uniformity of reflector antennas, an offset reflector antenna working at 15 GHz is designed by using a beam-forming technology. |
| 12887 | 该天线由一个非均匀有理B样条(non-uniform rational B-splines, NURBS)反射面和一个介质棒馈源组成，NURBS反射面通过物理光学法结合Nelder-Mead优化算法来赋形，从而获得理想的天线辐射场。 | The reflector antenna consists of a non-uniform rational B-splines(NURBS) reflector and a dielectric rod antenna, and the reflector surface is shaped by using both the physical optics and the Nelder-Mead algorthms to obtain a desired radaton pattern. |
| 12888 | 仿真结果表明，赋形后的反射面天线相对旁瓣电平低于ー!0 dB,增益在ー!. 7°〜!. 7°的波束范围内超 过!0 dBi，且浮动不超过1 dB.该天线具有结构简单、旁瓣低、增益均匀的特点，在卫星通信等领域具有重要作用， | The simulaton results show that the relatve sde lobe levels of the shaped reflector antenna are below -20 dB, the gains in the beam width of-2. 7 ° to 2. 7 ° are exceed 20 dBi, and its fluctuation does not exceed 1 dB. This antenna has the characteristics of simple construction, low side-lobe and uniform gain, which pays an important roe in sateHite communication. |
| 12889 | 为了评估辐射场中金属接触结构引起的无源互调(passive intermodulation, PIM )对接收天线的干扰程度，提出并验证了一种可以预测被天线接收的PIM幅值的计算方法。 | In order to evaluate the passive intermodulation (PIM) level induced by metallic contact structure located in the radiation field near the receiving antenna, a calculation method for predicting the amplitude of PIM received by the antenna is proposed and demonstrated in the paper. |
| 12890 | 应用PIM点源模型，并基于接触结处载波激励电流幅值和PIM信号耦合效率的仿真建立辐射场中金属接触PIM的计算方法。 | Adopting the PIM point source model, we calculated the PIM level of metal contact in the radiation field based on the simulating of carrier excitation current ampltude and intermodulation signal coupling efficiency. |
| 12891 | 采用缝隙波导工装基于近场耦合测试原理对两根铜丝搭接而成的接触结构在缝隙波导近场辐射场中的三阶无源互调(third-order passive intermodulation,PIM3)及其按位置分布规律进行测试分析。 | By employing the slotted wavegui de too i i ng based on near-field coupling test principle, we measured the third-order passive ntermodulaton (PIM3 ) level of the two copper wre contact juncon locatedn the near-field radaton field of the slotted waveguide and analyzed its position distribution dependence. |
| 12892 | 理论计算和实验测试结果比较吻合，证明本文提出的计算方法能够预估辐射场中金属接触PIM幅值。 | The experimental measured results are n good agreement wth theoretcal calculatons , whch valdates the proposed calculaton method of the PIM leve l mduced by metal contact juncton in the radiation field. |
| 12893 | 本研究工作为评估辐射场中 PIM产物提供了分析方法，同时有助于深入理解辐射场中金属接触PIM的产生机理。 | This work provides an analytical method for its evaluating PIM products, and contributes to an in-depth understanding of the mechanism of PIM induced by metal contact in the radation field. |