A Method for Multitarget Passive Location by a Movable Single Station Based on Weighted MUSIC Algorithm in FRFT Domain

Journal of Shanghai Jiaotong University››2011,Vol. 45››Issue (03): 345-0349.

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A Method for Multitarget Passive Location by a Movable Single Station Based on Weighted MUSIC Algorithm in FRFT Domain

HE Wei-Yan, JIN Rong-Hong, GENG Jun-Ping, LIANG Xian-Ling

(School of Electronic, Information and Electrical Engineering, Shanghai Jiaotong University, Shanghai 200240, China)

Received:2010-03-30Online:2011-03-30Published:2011-03-30

Abstract

Abstract:
Aiming at the situation of multiple linear frequency modulation(LFM) signal sources, by analyzing the Doppler shift of received signals, a multicomponent LFM signal model for the antenna array on a movable single station was built. Then a method for multitarget passive location based on weighted MUSIC algorithm in fractional Fourier transformation(FRFT) domain was presented, which implements the detection and DOA estimation of multitarget signals at low SNR. The simulation results show that multiple targets with similar frequency and close space can be distinguished in a high accuracy.
algorithm

Key words:linear frequency modulation(LFM) signal,multitarget,passive location,fractional Fourier transformation(FRFT),weighted MUSIC algorithm

CLC Number:

TN911.7

HE Wei-Yan, JIN Rong-Hong, GENG Jun-Ping, LIANG Xian-Ling. A Method for Multitarget Passive Location by a Movable Single Station Based on Weighted MUSIC Algorithm in FRFT Domain[J]. Journal of Shanghai Jiaotong University, 2011, 45(03): 345-0349.

References

［1］Belouchrani A, Amin M G. Timefrequency MUSIC［J］. IEEE Signal Processing Letters,1999, 6(5):109110.

［2］Rao P, Taylor F J. Estimation of instantaneous frequency using the discrete wigner distribution ［J］. Electronics Letters, 1990, 26(4):246248.

［3］邹红星, 戴琼海, 李衍达, 等. 不含交叉项干扰且具有WVD聚集性的时频分布之不存在性［J］. 中国科学(E辑), 2001, 31(4):348354.

［4］陶然,周云松.基于分数阶傅里叶变换的宽带LFM信号波达方向估计新算法［J］. 北京理工大学学报, 2005, 25(10):895899.

TAO Ran, ZHOU Yunsong. A novel method for the direction of arrival estimation of wideband linear frequency modulated sources based on fractional fourier transform［J］. Transactions of Bejing Institute of Technology, 2005, 25(10):895899.

［5］孙仲康, 周一宇, 何黎星. 单多基地有源无源定位技术［M］. 北京:国防工业出版社, 1996.

［6］Ozaktas H M , Kutay M A. Digital computation of the fractional Fourier transform ［J］. IEEE Trans Signal Processing, 1996, 44 (9): 21412150.

［7］齐林, 陶然, 周思永, 等.基于分数级Fourier变换的多分量LFM信号的检测和参数估计［J］. 中国科学(E辑), 2003, 33(8): 749759.

［8］Schmilt R. Multiple emitter location and signal parameter estimation ［J］. IEEE Trans on AP, 1986, 34(3):276280.

［9］杨建宇, 凌太兵, 贺峻. LFMCW雷达运动目标检测与距离速度去耦合［J］. 电子与信息学报, 2004, 26(2):169173.

YANG Jianyu, LING Taibing, HE Jun.MTD and rangevelocity ddcoupling of LFMCW radar［J］. Journal of Electronics ＆ Information Technology, 2004, 26(2):169173.

［10］Namias V. The fractional Fourier transform and its application in quantum mechanics［J］. Inst Math Appl, 1980, 25(3): 241265.

［11］王永良, 陈辉, 彭应宁. 空间谱估计理论与算法［M］．北京: 清华大学出版社, 2004.

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