双基地多载频MIMO雷达目标运动参数估计

Journal of Systems Engineering and Electronics ›› 2009, Vol. 31 ›› Issue (4): 799-803.

双基地多载频MIMO雷达目标运动参数估计

秦国栋, 陈伯孝, 陈多芳, 张守宏

西安电子科技大学雷达信号处理国家重点实验室, 陕西, 西安, 710071

收稿日期:2008-01-29 修回日期:2008-08-01 出版日期:2009-04-20 发布日期:2010-01-03
作者简介:秦国栋(1979- ),男,博士研究生,主要研究方向为雷达信号处理、阵列信号处理、目标检测与跟踪.E-mail:xdqgd@126.com
基金资助:
国家预研项目(51307050102);教育部新世纪优秀人才支持计划(NCET-06-0856)资助课题

Movement parameter estimation of targets in bistatic multi-frequency MIMO radar

QIN Guo-dong, CHEN Bai-xiao, CHEN Duo-fang, ZHANG Shou-hong

National key lab of radar signal processing, Xidian Univ., Xi’an 710071, China

Received:2008-01-29 Revised:2008-08-01 Online:2009-04-20 Published:2010-01-03

摘要/Abstract

摘要： 双基地多载频多输入多输出(multiple-input multiple-output,MIMO)雷达采用稀布阵发射多载频调频连续波(frequency modulated continuous wave,FMCW)信号,阵列接收目标回波。本文分析了双基地多载频MIMO雷达的信号模型,提出将多项相位变换和解调频技术结合来进行目标运动参数估计的方法,从而大大减少了运算量。针对多载频MIMO雷达提出了一种新的解速度模糊方法,该方法原理简单、易于工程实现,且速度估计精度较高。仿真结果表明,本文方法能够对目标运动参数进行有效估计。

Abstract: The bistatic multi-frequency Multiple-Input Multiple-Output(MIMO) radar uses sparse-array to transmit the frequency modulated continuous wave(FMCW) signal of multiple carrier frequencies and uses an array to receive the echoes.The signal model of a bistatic multi-frequency MIMO radar is analyzed in this paper.A method combining discrete polynomial-phase transform with dechirping is presented to estimate the movement parameter of targets,which reduces the computational complexity dramatically.A new method for multi-frequency MIMO radar is presented to resolve the velocity ambiguity problem.Being Simple and easy to implement,this method can obtain a high-accuracy estimation of velocity.The simulation indicates that the method presented in this paper can estimate the movement parameters of targets effectively.

中图分类号:

TN958.5

秦国栋, 陈伯孝, 陈多芳, 张守宏. 双基地多载频MIMO雷达目标运动参数估计[J]. Journal of Systems Engineering and Electronics, 2009, 31(4): 799-803.

QIN Guo-dong, CHEN Bai-xiao, CHEN Duo-fang, ZHANG Shou-hong. Movement parameter estimation of targets in bistatic multi-frequency MIMO radar[J]. Journal of Systems Engineering and Electronics, 2009, 31(4): 799-803.

参考文献

[1] 薛海瑛.2006年世界军事电子发展态势[J].现代雷达,2007,29(6):28-30.
[2] 戴喜增,彭应宁,汤俊.MIMO雷达检测性能FJ].清华大学学报,2007,47(1):88-91.
[3] 保铮,张庆文.一种新型的米波雷达-综合脉冲与孔径雷达[J].现代雷达,1995,17(1):1-13.
[4] Barbarossa.Detection and imaging of moving objects with synthetic aperture radar,part2:Joint time-frequency analysis by Wigner-Ville distribution[J].IEEProc.Pt.F.1992,39 (1):89-98.
[5] Xia X G.Discrete chirp-Fourier transform and its application to chirp rate estimation[J].IEEE Trans.on signal processing,2000,48 (11):3122-3133.
[6] Almedia Luis B.The fractional fourier transform and time-frequeney representations[J].IEEE Trans.on Signal Processing,1994,42(11):3084-3091.
[7] 张容权,杨建宇,熊金涛.基于多项相佗变换的线性FMCW雷达目标加速度和速度估计方法[J].电子学报,2005,33(3):452-455.
[8] 王胜华.曹运合,张守宏.高精度多目标运动参数估计[J].系统工程与电子技术,2004,26(8):1049-1052.(Wang Shenghua,Cao Yunhe,Zhang Shouhong.Estimation of multi-targets' parameters with a high precision[J].Systems Engzneering and Electronics,2004,26(8):1049-1052.)
[9] 黄振兴,万征.距离-速度噪扰模糊数据同时分辨的孙子定理算法[J].电子学报.1992,20(9):27-33.
[10] Trunk G,Brockett S.Range and velocity ambiguity resolution[C]//IEEE Internatinal Radar Conference,Washington,1993:146-149.
[11] 曾涛,龙腾.一种脉冲多普勒雷达解模糊的新算法[J].电子学报,2000,28(12):99-101.
[12] Woitkiewicz A,Rytel-Andrianik R.Optimal detection and estimation in FMCW radar[J].Microwaves,Radar and Wireless Communications,2002,(3):778-781.
[13] Shimon Peleg,Benjamin Friedlander.The discrete polynomialphase transform[J].IEEE Trans.on signal Processing,1995,43(8):1901-1914.
[14] TJ Abatzoglou.Fast maximum likelihood joint estimation of frequency and frequency rate[J].IEEE Trans.Aerosp Electronic Syst,1986,AES-22(6):708-715.