High-resolution velocity estimation and range profile analysis of moving target for pulse LFM UWB radar

被引：9

作者：

Yang, Limin ^{[1
]}

Su, Weimin ^{[1
]}

Cu, Hong ^{[1
]}

Geng, Runtong ^{[1
]}

机构：

[1] Nanjing Univ Sci & Technol, Dept Elect Engn, Nanjing 210094, Peoples R China

来源：

SIGNAL PROCESSING | 2011年 / 91卷 / 10期

基金：

中国国家自然科学基金;

关键词：

UWB radar; High-resolution; Velocity estimation; Range profile; Direction-of-arrival (DOA) estimation; OF-ARRIVAL ESTIMATION;

D O I：

10.1016/j.sigpro.2011.04.022

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

A high-resolution estimation of velocity and range profile (HREVRP) method is studied to yield both high-resolution radial velocity and range profile of slowly moving target for pulse linear frequency modulation (LFM) ultra-wideband (UWB) radar. Two-dimensional projection discrete Fourier transform (2-DPDFT) is utilized to estimate the velocity. The range profile is then obtained by compensating its motion and spread with this velocity estimate. In addition, a range of the velocities is derived based on velocity ambiguity and corresponding phase restriction. The proposed method does not require any initial velocity estimation and focusing matrices construction. Besides, it has superior performance of velocity estimation compared with conventional techniques, especially at low signal-to-noise ratio (SNR) levels. The simulations validate the effectiveness of the method. (C) 2011 Elsevier B.V. All rights reserved.

引用

页码：2420 / 2425

页数：6

共 14 条

[1] Range, radial velocity, and acceleration MLE using radar LFM pulse train [J].

Abatzoglou, TJ ;

Gheen, GO .

IEEE TRANSACTIONS ON AEROSPACE AND ELECTRONIC SYSTEMS, 1998, 34 (04) :1070-1084

[2] 2-DIMENSIONAL DFT PROJECTION FOR WIDE-BAND DIRECTION-OF-ARRIVAL ESTIMATION [J].

ALLAM, M ;

MOGHADDAMJOO, A .

IEEE TRANSACTIONS ON SIGNAL PROCESSING, 1995, 43 (07) :1728-1732

[3] Isomorphism between pulsed-wave Doppler ultrasound and direction-of-arrival estimation .1. Basic principles [J].

Allam, ME ;

Greenleaf, JF .

IEEE TRANSACTIONS ON ULTRASONICS FERROELECTRICS AND FREQUENCY CONTROL, 1996, 43 (05) :911-922

[4]

Bocker R. P., 1992, International Journal of Imaging Systems and Technology, V4, P285, DOI 10.1002/ima.1850040408

[5] A new method for joint DOD and DOA estimation in bistatic MIMO radar [J].

Chen, Jinli ;

Gu, Hong ;

Su, Weimin .

SIGNAL PROCESSING, 2010, 90 (02) :714-718

[6] WAVES: Weighted average of signal subspaces for robust wideband direction finding [J].

Di Claudio, ED ;

Parisi, R .

IEEE TRANSACTIONS ON SIGNAL PROCESSING, 2001, 49 (10) :2179-2191

[7] A study of the rank-ambiguity issues in direction-of-arrival estimation [J].

Tan, KC ;

Goh, SS ;

Tan, EC .

IEEE TRANSACTIONS ON SIGNAL PROCESSING, 1996, 44 (04) :880-887

[8]

TORIN S, 2010, Patent No. 7697634

[9]

VIET TV, 2010, IEEE GEOSCI REMOTE S, V7, P281

[10] Ultra-wideband radar signals generated technology with two-channel [J].

Wan, Yonglun ;

Si, Qiang ;

Lu, Youxin ;

Wang, Xuegang .

SIGNAL PROCESSING, 2007, 87 (12) :3101-3107

← 1 2 →