ID |
原文 |
译文 |
46796 |
安全性分析和性能分析表明所提 PoSW 方案是安全和高效的。 |
Security analysis and performance evaluation show the security and efficiency of the proposed scheme. |
46797 |
针对现有直接序列扩频码分多址(DS-CDMA)水声通信数据率低且接收复杂度高的问题,提出循环移位扩频多用户通信方法。 |
Aiming at the problem of low data rate and high receiver complexity of existing direct sequence spread spectrum code division multiple access (DS-CDMA), a novel code division multiple access (CDMA) using cyclic shift keying (CSK)signaling, namely CSK-CDMA, was proposed for multiuser underwater acoustic communication. |
46798 |
通过基于 M 元调制的循环移位扩频技术来有效提高每个用户的数据率,相对 DS-CDMA有着更高的带宽效率; |
The proposed method used the cyclic correlation characteristic of spread spectrum signals with M-ary modulation to provide a higher data rate than conventional. |
46799 |
利用被动时间反转技术抑制各用户之间的码间干扰和同信道干扰,复杂度低; |
Passive time reversal technology was employed to suppress inter-code interference between users and the co-channel interference. |
46800 |
利用扩频码之间的准正交性提高处理增益。 |
The quasi-orthogonality of spread spectrum code was used to improve the processing gain. |
46801 |
湖上实验研究结果表明在浅水 5.27 km 距离且复杂多径干扰条件下,利用所提方法可实现 10 −2 ~10 −4 的误码率并实现 6 用户通信,通信速率可达 39 bit/s。 |
Multi-user communications are demonstrated with lake experimental recorded data under the condition of 5.27 km distance and complex multipath interference. The data rate is 39 bit/s/user for 6 users with bit error rate around 10 −2 ~10 −4. |
46802 |
针对保护云存储中用户数据机密性的问题,提出了一种在云服务提供商处加密数据的云存储方案。 |
Aiming at protecting the confidentiality of data for cloud storage users, a scheme that encrypt data in cloud service providers was presented. |
46803 |
通过虚拟机隔离技术来构造封闭计算环境,改进 RSA 公钥加密算法使其不需要重新产生大素数就能实现密钥变化,并通过 SSL 安全链接传输数据以及密钥,将数据在封闭计算环境中安全加密后再存储至分布式文件系统。 |
The scheme constructed a closed-box computing environment by virtual machine isolation technique, improved algorithm of RSA to change keys without having to produce large prime numbers, transfer data and keys through SSL and encrypted data in the closed computing environment before storing to the distributed file system. |
46804 |
封闭计算环境能阻止操作系统中不良应用以及云管理员的攻击, |
Closed-box computing environment can prevent attacks from cloud administrators and malicious applications in the operating system. |
46805 |
有效防范数据泄露。 |
It also can guard against data leakage effectively. |