DS-UWB导航定位系统应用研究  

Research on DS-UWB Based Navigation and Positioning Systems

作　　者：赵亮[1] ZHAO Liang

机构地区：[1]中国电子科技集团公司第二十研究所,西安710068

出　　处：《现代导航》2017年第5期313-315,共3页Modern Navigation

基　　金：总装预研基金资助(No.9140XXXXX303XX)

摘　　要：超宽带具有定位精度高、保密安全性能好等特点,在导航定位领域有着广阔的应用前景。本文对一种DS-UWB导航定位系统的应用研究进行了探讨。该系统利用改进型Logistic混沌映射产生的混沌序列和超宽带脉冲构成导航信号复合扩频码,通过布设的导航基准源发射导航信号。在电磁干扰环境下,本文研究的系统可以改善和增强卫星导航系统的定位精度,还可以独立为区域内用户提供安全、可靠的导航定位服务。Ultra Wideband(UWB)has the advantages of high positioning accuracy and good security.It has a broadapplication prospect in the field of navigation and positioning.In this paper,we discuss a kind of DS-UWB based navigation andpositioning system.The proposed system use the chaotic sequences by aggressive Logistic and UWB pulse as the spread spectrumcodes of navigation signals.And then,the navigation signal is transmitted by navigation sources.The proposed system can improvethe security of satellite navigation system.What’s more,the proposed system can build an independent navigation system to providethe PNT services.

关 键 词：超宽带 直接扩展频谱序列 混沌 

分 类 号：TN918[电子电信—通信与信息系统]