Adaptive time delay and Doppler shift estimation for narrowband signals

被引：13

作者：

Dooley, SR ^{[1
]}

Nandi, AK ^{[1
]}

机构：

[1] Univ Strathclyde, Dept Elect & Elect Engn, Signal Proc Div, Glasgow G1 1XW, Lanark, Scotland

来源：

IEE PROCEEDINGS-RADAR SONAR AND NAVIGATION | 1999年 / 146卷 / 05期

关键词：

D O I：

10.1049/ip-rsn:19990601

中图分类号：

TN [电子技术、通信技术];

学科分类号：

0809 ;

摘要：

A computationally inexpensive algorithm suitable for fast, high-resolution estimation of time delays and Doppler shifts (which are necessary for target ranging and tracking) between narrowband signals is presented. The algorithm uses a modulated Lagrange interpolation filter and an LMS-type algorithm. The problem of delay and Doppler estimation is reduced to a linear regression problem. Convergence and performance analysis of the method is studied both analytically and through simulation. It is demonstrated that the method provides more (or as) efficient estimates than modulated sine interpolation or the corresponding unmodulated algorithms for a variety of conditions.

引用

页码：243 / 250

页数：8

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