北京航空航天大学学报 ›› 2019, Vol. 45 ›› Issue (1): 183-191.doi: 10.13700/j.bh.1001-5965.2018.0191

• 论文 • 上一篇    下一篇

频率分集阵列对干涉仪的角度欺骗效果

葛佳昂1, 谢军伟1, 张浩为1, 冯晓宇1, 张晶2   

  1. 1. 空军工程大学 防空反导学院, 西安 710051;
    2. 陕西交通职业技术学院 公路与铁道工程学院, 西安 710018
  • 收稿日期:2018-04-09 修回日期:2018-08-24 出版日期:2019-01-20 发布日期:2019-01-28
  • 通讯作者: 谢军伟 E-mail:xjw_xjw_123@163.com
  • 作者简介:葛佳昂,男,博士研究生。主要研究方向:雷达信号处理;谢军伟,男,博士,教授,博士生导师。主要研究方向:隐身与反隐身、雷达电子战。
  • 基金资助:
    国家自然科学基金(61503408)

Angle deception effect of frequency diversity array on interferometer

GE Jiaang1, XIE Junwei1, ZHANG Haowei1, FENG Xiaoyu1, ZHANG Jing2   

  1. 1. Air and Missile Defense College, Air Force Engineering University, Xi'an 710051, China;
    2. College of Highway and Railway Engineering, Shaanxi College of Communication Technology, Xi'an 710018, China
  • Received:2018-04-09 Revised:2018-08-24 Online:2019-01-20 Published:2019-01-28
  • Supported by:
    National Natural Science Foundation of China (61503408)

摘要: 针对干涉仪的测向隐蔽性问题,提出了一种基于频率分集阵列(FDA)对干涉仪的角度欺骗方法。干涉仪通过求取各天线接收到信号的相位差确定信号到达角,而FDA由于各阵元具有微小频偏造成其相位差并不满足求解关系,从而实现角度欺骗。首先,利用模型建立法和欧拉公式法2种方法建立了FDA波束相位模型;然后,从建立的2种模型出发,论证了FDA发出信号对干涉仪具有角度欺骗效果;最后,仿真分析了干扰距离、阵元间距、发射频率、频率增量等因素的影响。理论分析与仿真结果表明,FDA对处于远场的干涉仪目标有良好的欺骗效果。

关键词: 频率分集阵列(FDA), 角度欺骗, 干涉仪, 欧拉公式, 相位差

Abstract: A method of angle deception jamming for interferometer based on frequency diversity array (FDA) is proposed to solve the problem of direction-finding concealment of interferometer. The interferometer determines the angle of arrival by obtaining the phase difference of the signals received by each antenna, and the phase difference does not satisfy the solution relation due to the frequency offset of each element of FDA, so that the angle deception is achieved. This paper proposes two algorithms (FDA model establishment and Euler formula) to establish the FDA signal phase distribution model. It is proved that FDA signal has an angle deception effect on interferometer. Based on the principle of interferometer, the influence of interference distance, interval of array element, emission frequency, frequency offset, etc. is analyzed. The theoretical analysis and simulation results show that FDA has a good deception effect on the interferometer in far field.

Key words: frequency diversity array (FDA), angle deception, interferometer, Euler formula, phase difference

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