ID 原文 译文
21695 水下自主无人平台(AUV)在曲线机动情况下利用传统ETAM方法扩展孔径时，目标方位估计结果无法聚焦到真实方位，估计偏差严重，针对这一问题，该文结合运动补偿提出一种新的ETAM算法。 In order to overcome difficulty in extending flank array by traditional Extended Towed Array Measurement (ETAM) technique based on curvilinear maneuverability of Autonomous Underwater Vehicles(AUV), a new ETAM method is proposed by combining estimating phase correction factors in beam domain and linear fitting motion compensation in element domain.
21696 该算法将波束域与阵元域结合处理，在波束域获取相位信息，在阵元域对相位信息进行线性拟合，有效克服曲线运动造成的相位误差，得到相位修正因子后对连续测量进行相位补偿，实现孔径扩展。 The method estimates phase differences in beam domain and implements linear fitting of phase correction factors in element domain to compensate phase error due to curvilinear motion, which can acquire accurate phase correction factors and extend array.
21697 仿真和试验结果表明，无论平台直线航行还是曲线机动，该算法在对比算法失效的情况下，仍具有很高的测向精度、角度分辨率及空间增益，且适用于多目标的分辨，在较低信噪比下对性能的改善更为明显，有较强的实用性和环境宽容性。 Results of simulation and experiment show that no matter straight line navigation or curvilinear maneuverability, the method achieved higher DOA estimation accuracy, angular resolution and signal gain, which is also suitable formulti-target resolving. Especially in low signal-noise-ratio condition, the improvement of this method in performance is more obvious, for which it has strong practicality and environmental tolerance.
21698 针对软件定义网络(SDN)中缺乏安全高效的数据来源验证机制问题，该文提出基于密码标识的报文转发验证机制。 To deal with the lack of a secure and efficient data source authentication mechanism in Software-Defined Network (SDN), a packet forwarding authentication mechanism based on cipher identification is proposed.
21699 首先，建立基于密码标识的报文转发验证模型，将密码标识作为IP报文进出网络的通行证。 Firstly, a packet forwarding authentication model based on cipher identification is established, wherethe cipher identification is identified as a passport of IP packets entering and leaving the network.
21700 其次，设计SDN批量匿名认证协议，将SDN控制器的验证功能下放给SDN交换机，由SDN交换机进行用户身份验证和密码标识验证，快速过滤伪造、篡改等非法报文，提高SDN控制器统一认证与管理效率，同时可为用户提供条件隐私保护。 Secondly, the SDN batch anonymous authentication protocol is designed to decentralize the authentication function of the SDN controller to the SDN switch. The SDN switch performs user authentication and cipher identification verification, and quickly filters forgery, falsification, and other illegal packets to improve the unified authentication and management efficiency of the SDN controller, while providing users with the conditions of privacy protection.
21701 提出基于密码标识的任意节点报文抽样验证方案，任何攻击者无法通过推断采样来绕过报文检测，确保报文的真实性的同时降低其处理延迟。 Thirdly, a scheme for sampling and verifying packets based on cipher identification in any node is proposed, where any attacker can not bypass the packet detection by inferring the sample, to ensure the authenticity of the packet while reducing its processing delay.
21702 最后，进行安全性分析和性能评估。 Finally, safety analysis and performance evaluation are conducted.
21703 结果表明该机制能快速检测报文伪造和篡改及抵抗ID分析攻击，但同时引入了大约9.6%的转发延迟和低于10%的通信开销。 The results show that this mechanism can quickly detect packet falsification and tampering and resist ID analysis attacks, but at the same time it introduces about 9.6% forwarding delay andless than 10% communication overhead.
21704 射频能量捕获技术是解决传统无线传感网由于节点电量有限而生命周期受限的有效方法。 Radio-Frequency (RF) energy harvesting technique is proved a promising way to solve the short network lifetime issue of traditional Wireless Sensor Networks (WSNs) caused by sensors' finite energy.