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CLC number: TN974

On-line Access: 2017-10-25

Received: 2016-09-22

Revision Accepted: 2017-01-04

Crosschecked: 2017-09-30

Cited: 0

Clicked: 1715

Citations:  Bibtex RefMan EndNote GB/T7714

 ORCID:

Zhao-jian Zhang

http://orcid.org/0000-0003-3703- 0314

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Frontiers of Information Technology & Electronic Engineering  2017 Vol.18 No.9 P.1437-1446

http://doi.org/10.1631/FITEE.1601577


Deceptive jamming discrimination based on range-angle localization of a frequency diverse array


Author(s):  Zhao-jian Zhang, Jun-wei Xie, Chuan Sheng, Zhun Tang

Affiliation(s):  Air and Missile Defense College, Air Force Engineering University, Xi’an 710051, China

Corresponding email(s):   zzj554038@163.com

Key Words:  Frequency diverse array (FDA), Deceptive jamming, Range-angle coupling, Sum-difference beam, Double-pulse


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Zhao-jian Zhang, Jun-wei Xie, Chuan Sheng, Zhun Tang. Deceptive jamming discrimination based on range-angle localization of a frequency diverse array[J]. Frontiers of Information Technology & Electronic Engineering, 2017, 18(9): 1437-1446.

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Abstract: 
We propose a method to suppress deceptive jamming by frequency diverse array (FDA) in radar electronic countermeasure environments. FDA offers a new range-angle-dependent beam pattern through a small frequency increment across elements. Due to the coupling between the angle and range, a mismatch between the test angle and physical angle occurs when the slant range on which the beam focuses is not equal to the slant range of the real target. In addition, the range of the target can be extracted by sum-difference beam except for time-delay testing, because the beam provides a range resolution in the FDA that cannot be deceived by traditional deceptive jamming. A strategy of using FDA to transmit two pulses with zero and nonzero frequency increments, respectively, is proposed to ensure that the angle of a target can be obtained by FDA. Moreover, the localization performance is examined by analyzing the Cramer-Rao lower bound and detection probability. Effectiveness of the proposed method is confirmed by simulation results.

基于距离、角度定位的频率分集阵列欺骗干扰鉴别方法

概要:针对电子对抗中的欺骗干扰鉴别问题,提出了基于频率分集阵列(frequency diverse array, FDA)的干扰鉴别方法。FDA波束具有距离-角度二维耦合特性,当波束聚焦距离与真实目标不一致时,会产生角误差信号,即干扰角度在相控阵中与真实目标一致,而在FDA中与真实目标不一致。因此,利用相控阵和FDA分别进行参数测量,比对测量结果即可实现干扰鉴别。提出了基于FDA进行干扰鉴别的具体流程,给出了两种双波束测量的实现方案,并对各方案的目标检测及参数估计性能进行了理论分析。仿真结果证明了该方法的有效性。

关键词:频率分集阵列;欺骗干扰;距离角度耦合;和差波束;双波束

Darkslateblue:Affiliate; Royal Blue:Author; Turquoise:Article

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