基于零相关序列的精确同步方法及其在航空集群交感网络中的应用研究

项目名称： 基于零相关序列的精确同步方法及其在航空集群交感网络中的应用研究

项目编号： No.61502523

项目类型： 青年科学基金项目

立项/批准年度： 2016

项目学科： 自动化技术、计算机技术

项目作者： 王徐华

作者单位： 中国人民解放军空军工程大学

项目金额： 21万元

中文摘要： 研究高动态复杂信道环境中基于零相关序列的精确同步方法及其在航空集群交感网络中的应用，主要包括：（1）研究高动态复杂信道环境中集群单元的同步方法。得到相关函数在高动态复杂环境下的离散域表达式，利用扩频序列相关函数和鉴相曲线特性实现精同步。（2）研究基于零相关序列的点对点的精确同步方法。引入零相关序列获得更好的相关特性及抗多径能力，获得分数倍采样周期分辨率的同步精度。（3）研究满足信号级交感的全网同步方法。研究同步序列周期长度及零相关区长度的动态设定方法以及全网同步策略，从而实现具有较大量元素的航空集群的低时延全网同步。.本项目研究成果不仅可以满足航空集群高动态条件下对低时延精同步的要求，而且可以用于无线传感器网络、无线定位、协同通信、移动通信等民用领域，是保障无线通信网络QoS、雷达组网精度、定位系统性能的重要内容，为航空集群交感网络实现信号级交感提供保障，具有重要的理论意义和现实价值。

中文关键词： 零相关序列；精确同步；航空集群；交感网络；低时延

英文摘要： Precise synchronization method based on Zero Correlation Zone (ZCZ) sequence under high-dynamic complex channel condition and the application of which in the communication and sensing netwoker of aviation swarm will be investigated, mainly include:(1)Study of synchronization method of swarm nodes under high-dynamic complex channel evironment. discrete presentation of correlation function under high-dynamic complex channel will be achieved and precise synchronization exploiting spread spectrum sequence and the phase-discrimination curve will be realized.(2)Point to point precise synchronization mehtod based on ZCZ sequence will be studied. ZCZ sequence will be introduced to achieve better correlation property and anti-multipath capability to reach synchronizaiton accuracy with fractional ratio sampling period.(3)Synchronizaiton for the whole network that meets the requirements of signal-level communication and sensing.Dynamic establishment of period and ZCZ of synchronizaiton sequence and synchronizaiton strategy of whole network will be investigated to obtain low-latency network synchronization for aviation swarm with large number of elements. The research of this project not only satisfies the demands of low-latency high-precise synchronizaiton of aviation swarm under high dynamic evironment but also could be applicable to civilian fields such as wireless sensor network, wireless positioning, coorperative communications, mobile communication, et al. which is the essential issue to insure the QOS of wireless communication network, accuracy of radar network and performance of positioning system and supplements indemnificatory for signal-level communication and sensing of aviation swarm, is theotically meaningful and practically valuble.

英文关键词： zero correlation zone sequence;precise synchronization;aviation swarm;communication and sensing;low latency