项目名称: 时间反演算技术在无线传感器网络一些关键技术研究中的应用
项目编号: No.60872029
项目类型: 面上项目
立项/批准年度: 2009
项目学科: 金属学与金属工艺
项目作者: 洪劲松
作者单位: 电子科技大学
项目金额: 33万元
中文摘要: 随着现代网络技术的发展及完善,无线通信技术日趋先进,以前不太完善的无线传感器网络技术的研究有机会进一步地得到完善和发展。时间反演(Time Reversal:TR)技术能够使超宽带脉冲信号传输按预定地点实现时间和空间的同步聚焦,从而可以用来解决在无线传感器网络研究中所存在的安全问题、能量问题、容错机制、网络结构等四个方面中的一些技术难题。 本课题拟从无线传感器网络系统结构的设计需求角度出发,以基于时间反演技术的无线传感网络为研究对象,利用电磁波时间反演算法的时-空聚焦特性,研究基于时间反演技术的无线传感器网络的MISO 信息传输链路模型及仿真平台;基于时间反演技术的无线传感器网络的MIMO 通信信道模型及仿真平台;基于时间反演技术的无线传感器网络节点技术定位技术;基于时间反演技术的无线传感器无线节点充电技术,以及相关整流天线技术;以便为解决无线传感器网络的系统设计提供最佳的解决方案。
中文关键词: 时间反演; 时间空间同步聚焦; 无线传感器网络
英文摘要: With the development and fulfilment of modern network technology, the wireless communication technology is becoming more advanced than ever so that the previously imperfect wireless sensor network technology will be developed and fulfiled available in the future research. Time reversal technique can be utilized to transmit the ultrawideband pulse to realize time-space synchronous focusing function at predeterminate location, thus the technique can be utlized to solve the four fundamental problems of wireless sensor network(i.e. security problem, energy problem, fault-tolerant system problem and network structure problem). In this project, in order to meet the design need of wireless sensor network stucture, the wireless sensor network based on time reversal technique will be regarded as research objective. The time-space focusing characteristics of electromagnetic waves based on time reversal technique is utlized to investigate some key problems in wireless sensor network, which contain the MISO communication link model and its simulation platform,the MIMO communication channel model and its simulation platform, the orientation technique and the wireless recharge for the nodes in wireless sensor network. At last, this project will also provide some useful solutions and methods to meet the design need of wireless sensor network system.
英文关键词: time-reversal algorithm; time-space synchronous focusing characteristics; wireless sensor network