ID 原文 译文
20225 通过等效电路分析得到该吸波体在宽频带内具有良好的阻抗匹配，并通过电流分析验证了吸波机理。 The analysis of equivalent circuit show that the absorber has good impedance matching in a wide frequency band and the mechanism of wave absorption is verified by current analysis.
20226 整个吸波体的单元大小仅为0.089×0.089(为该结构最低吸波频率所对应的波长)。厚度为0.078。 The size of the unit is only about0.089×0.089, where  is the wavelength of the lowest frequency, and the total thickness of the absorber isonly 0.078.
20227 仿真结果表明：在2.24～16.14 GHz吸波率始终大于90%，相对带宽达151%。 Simulated and experimental results show that the absorber exhibits absorptivity above 90% from2.24 GHz to 16.14 GHz, and the relative absorption bandwidth is about 151%.
20228 制备相应实物并进行测试，实测结果与仿真结果基本吻合。 Measurement results show good agreement with the numerically simulated results.
20229 针对基于概率抽样的网络流量异常检测数据集构造过程中无法同时兼顾大、小流抽样需求及未区分flashcrowd与流量攻击等问题，该文提出一种面向流量异常检测的概率流抽样方法。 For problems of not meeting the demand of sampling both large flows and small flows at the same time, and not distinguishing flash crowd from traffic attacks in building network traffic anomaly detection datasets based on probabilistic sampling methods, a probabilistic flow sampling method for traffic anomaly detection is proposed.
20230 在对数据流按目的、源IP地址进行分类的基础上，将每类数据流抽样率定义为其目的、源IP地址抽样率的最大值，并在抽样过程中对数据流抽样数目向上取整，保证每类数据流至少被抽样一次，使抽样得到的数据集可有效反映原始流量在大、小流和源、目的IP地址方面的分布性。 On the basis of the classification of network data flows according to their destination and source IP addresses, the sampling probability for each class of data flows is set as the maximum of its destination and source IP address’s sampling probability, and the number of sampled data flows is ceiled to ensure that each class of data flows is sampled at least once, so that the sampled dataset can reflect the distributions of large, small flows and source, destination IP addresses in original traffics.
20231 采用源IP地址熵刻画异常流源IP地址分散度，并基于源IP地址熵阈值设计攻击流抽样算法，降低由flash crowd引起的非攻击异常流抽样概率。 Then, the source IP address entropy is used to characterize the source IP dispersion of anomaly flows, and the attack flow sampling algorithm is designed based on the threshold of the source IP address entropy, which reduces the sampling probability of non-attack anomaly flows caused by flash crowd.
20232 仿真结果表明，该方法能同时满足大、小流抽样需求，具有较强的异常流抽样能力，可抽样到所有与异常流相关的可疑源、目的IP地址，并能在抽样过程中过滤非攻击异常流。 The simulation results show that the proposedmethod can satisfy the sampling requirements of both large flows and small flows, it has a high anomaly flowssampling ability, can sample all the suspicious sources and destination IP addresses related to anomaly flows,and can effectively filter the non-attack anomaly flows.
20233 微波光子雷达发射信号带宽大、波长短，能够实现分辨率更高的逆合成孔径雷达(ISAR)成像。 Microwave photonics radar generates signals with large bandwidth and small wavelength. It has capability of ultra-high resolution of Inverse Synthetic Aperture Radar(ISAR) image.
20234 但带宽大、波长小的回波信号也导致传统成像算法对目标转动分量的近似不成立，使得传统算法无法应用。 Because the approximation of rotational components is not tenable, traditional ISAR imaging algorithm is not suitable to microwave photonics radar.