多点定位系统脉冲到达时间测量技术研究  

Research on the Pulse Time-of-Arrival Measurement of Multilateration System

作　　者：李家蓬 安强 付磊 谢莉 LI Jiapeng;AN Qiang;FU Lei;XIE Li(Sichuan Jiuzhou Air Traffic Control Technology Co.,Ltd.,Mianyang 621000)

机构地区：[1]四川九洲空管科技有限责任公司,绵阳621000

出　　处：《舰船电子工程》2021年第1期30-33,45,共5页Ship Electronic Engineering

摘　　要：论文研究了机场场面多点定位系统(Multilateration,MLAT)传统脉冲到达时间测量技术(固定门限测量),分析了其误差引入因素及相应消除方法。从脉冲沿到达时间的精度、统计估计方法的最优估计提出了一种差分匹配滤波法测量脉冲到达时间。最后,在差分匹配滤波法的基础上,从提高信噪比的角度提出了一种改进的多脉冲积累差分匹配滤波法。This paper researches the classical TOA measurement technology(fixed threshold measurement)of multilateration system,analyzes the error introduced factors and corresponding elimination method.It proposes a difference matched filtering meth⁃od according to the precision of TOA measurement and the optimal estimate of statistical estimation method.Finally on the basis of difference matched filtering method,it proposes a improved multiple-pulse accumulation difference matched filtering method from the point of improving the signal-to-noise ratio.

关 键 词：多点定位系统 脉冲到达时间(TOA) 差分匹配滤波 

分 类 号：TN959.6[电子电信—信号与信息处理]