项目名称: 基于VSF-OFCDM的分布式相参干扰节点同步技术研究
项目编号: No.61201166
项目类型: 青年科学基金项目
立项/批准年度: 2013
项目学科: 电子学与信息系统
项目作者: 高凯
作者单位: 中国人民解放军国防科学技术大学
项目金额: 23万元
中文摘要: 分布式相参干扰可实现干扰能量高度集中,但是各节点之间的高精度时间同步是其能够实际应用的前提。基于VSF-OFCDM技术,在保持各节点抗干扰、抗截获性能的同时,避开扩频通信中严格同步的问题,研究多节点相参干扰的高精度时间同步技术,包括:基于VSF-OFCDM的分布式同步策略、无线衰落信道条件下VSF-OFCDM信号的传输性能分析的参数优化策略,以及相噪对多节点同步精度的建模与影响分析。项目将为分布式多节点的高精度时间同步问题的解决提供一条崭新的解决思路,为实现分布式相参干扰奠定理论与技术基础。
中文关键词: 精准电子干扰;正交频率码分复用;相位噪声;;
英文摘要: Distributed coherent jamming nodes system can focus power within a small geographic area of interest (AOI). Precise time synchronization technique is the precondition of practical application of the system. With VSF-OFCDM technology, the system can avoid the strict time synchronization problem in DS communications as well as saving the anti-jamming and low probability interception (LPI) capabilities. High precision time synchronization technologies in multi-coherent jamming nodes including: Distributed synchronization strategy based on VSF-OFCDM, propagation performance and parameters selection of VSF-PFDCM signals in wireless fading channels, modeling and analysis of the effect of phase noise impacting on the precision of time synchronization. A new idea is provided for resolving the high precision time synchronization problem in distributed multi-coherent nodes and establishing the theoretic and technique foundation of the realization of distributed coherent jamming nodes.
英文关键词: precision electronic jamming;OFCDM;Phase noise;;