Radar transmitted waveform selection for maneuvering target tracking

被引：0

作者：

Jin, Biao ^{[1
]}

Jiu, Bo ^{[1
]}

Su, Tao ^{[1
]}

Liu, Hong-Wei ^{[1
]}

Zhang, Long ^{[1
,2
]}

机构：

[1] National Laboratory of Radar Signal Processing, Xidian University, Xi'an,710071, China

[2] College of Electronics and Information, Xi'an Polytechnic University, Xi'an,710048, China

来源：

Dianzi Yu Xinxi Xuebao/Journal of Electronics and Information Technology | 2014年 / 36卷 / 08期

关键词：

Chirp modulation - Tracking radar - Cramer-Rao bounds - Clutter (information theory);

D O I：

10.3724/SP.J.1146.2013.01744

中图分类号：

学科分类号：

摘要：

Firstly, in the framework of the Interacting Multiple Model (IMM) algorithm the constant-velocity model and the adaptive constant acceleration model are selected as the dynamic models for the un-maneuvering and maneuvering states of the un-cooperative target, which is called the adaptive IMM algorithm. Then since it is necessary to consider the performance of estimating range/velocity and Doppler tolerance for tracking a maneuvering target, the V-Linear Frequency Modulated (V-LFM) signal is selected as the transmitted signal in the radar system. The analysis on the Cramer-Rao Lower Bound (CRLB) for estimating the range/velocity and Doppler tolerance of three signals (LFM, V-LFM and M sequence) shows that the V-LFM waveform can effectively improve the performance of estimating the target range and velocity in the case of a bit loss in the Doppler tolerance. The simulations demonstrate that the tracking performance is apparently improved, when multiple pulses of V-LFM waveform is transmitted and the adaptive IMM algorithm is utilized in the radar system.

引用

页码：1912 / 1918