信道设备阻抗失配对扩频测距的影响  

Influence of impedance mismatch of channel equipment on the ranging system

作　　者：李垣陵[1] 孙广富[1] 欧钢[1] 

机构地区：[1]国防科技大学电子科学与工程学院卫星导航研发中心,湖南长沙410073

出　　处：《西北师范大学学报（自然科学版）》2009年第2期39-43,共5页Journal of Northwest Normal University(Natural Science)

基　　金：教育部新世纪优秀人才支持计划资助项目(NCET-04-0995)

摘　　要：高精度扩频测距系统中,信道设备间阻抗失配引入的测距误差是影响系统性能的重要因素.在互连信道设备阻抗失配对扩频测距影响的系统模型基础上,给出了信道设备阻抗失配对扩频测距影响的量化结果,深入分析了一种大型测距系统阻抗失配评估方法.研究成果可为提高高精度扩频测距系统测距精度以及系统性能评估提供支撑.Interconnection channel equipments＇ impedance mismatch is the key influence factor of system range performance in spread spectrum ranging system. In view of a system model of intereonnection equipments＇ impedance mismatch influence in spread spectrum ranging system, the quantification result that impedance mismatch affects to ranging system is given, and a method of evaluationg system＇s impedance mismatch characteristics is analysed. The research results help to realize high performance ranging and performance evaluate method of the ranging system.

关 键 词：信道设备 阻抗失配 多径 高精度扩频测距 

分 类 号：TN914.42[电子电信—通信与信息系统]