-
摘要:
欺骗干扰是一种常用的雷达干扰技术，提出了一种对抗单脉冲雷达的欺骗干扰机设计新方法。在分析欺骗干扰信号特性基础上，基于压缩感知（CS）框架和数字射频存储（DRFM）技术，根据线性调频（LFM）信号在分数阶傅里叶域的能量聚集特性，设计了压缩感知框架下的DRFM以产生角度欺骗干扰信号；通过控制干扰信号强度产生角度拖引和闪烁干扰以实现对单脉冲雷达角度跟踪的有效干扰。仿真实验结果表明，干扰机能够产生良好的角度欺骗干扰信号，通过干扰信号强度控制能够产生稳定的角度拖引和闪烁干扰。
-
关键词:
- 欺骗干扰 /
- 分数阶傅里叶变换 /
- 数字射频存储(DRFM) /
- 压缩感知(CS) /
- 角度干扰
Abstract:Deceptive jamming is a common radar jamming technology. This paper presents a novel deception jammer against monopulse radar. First, the characteristics of angle deceptive signal is analyzed. Then, according to energy aggregation properties of the linear frequency modulation (LFM) signal in fractional domain, a digital radio frequency memory (DRFM) under compressed sensing (CS) framework is proposed in order to generate angle deceptive jamming signal. In order to achieve effective jamming against the monopulse radar tracking system, the angle pull-off jamming and glint jamming achieving method is considered by controlling the power of jamming signal. Simulation results show that origin signal can be recovered with the proposed method very well, and the jammer can achieve a stable angle pull-off and blink jamming.
-
图 4 LFM信号在FRFT域二维分布(SNR=5 dB)
Figure 4. Two-dimensional distribution of LFM signal in FRFT domain (SNR=5 dB)
图 10 不同干扰信号强度比下测角误差
Figure 10. Angle measurement error at different interference signal intensity ratios
图 12 不同回波信号强度比下测角误差
Figure 12. Angle measurement error under different echo signal intensity ratios
表 1 单脉冲雷达测角系统各模块模型
Table 1. Module models of monopulse radar system
系统模块 模块参数模型 天线模块 改进sinc函数模型 噪声模块 高斯白噪声 目标模块 点目标 信号模块 LFM信号 测角模块 比幅测角 
下载: 导出CSV
表 2 角闪烁干扰仿真结果
Table 2. Simulation results of angle glint jamming
闪烁时间 干扰机1相对强度 干扰机2相对强度 干扰信号强度比 误差角度/(°) nΔT≤t≤nΔT+ΔT/2 100 99 b=0.99 1.97 nΔT+ΔT/2 < t≤(n+1)ΔT 98 99 bI=0.99 -2.03
下载: 导出CSV
-
[1] SHERMAN S M.Monopulse principles and techniques[M].Dedham:Artech House, 1985:362-380. [2] PAIK H, SASTRY N N, SANTIPRABHA I.Effectiveness of repeat jamming using LFM interference signal in monopulse receivers[J].Procedia Computer Science, 2015, 57:296-304. doi: 10.1016/j.procs.2015.07.489 [3] SHANG Z, BAI W, FU X.Analysis of cross-eye jamming[J].International Proceedings of Computer Science & Information Tech, 2012, 55:8-12. http://connection.ebscohost.com/c/articles/94075266/analysis-cross-eye-jamming [4] LIU S Y, DONG C, XU X J, et al.Analysis of rotating cross-eye jamming[J].IEEE Antennas & Wireless Propagation Letters, 2015, 14:939-942. http://adsabs.harvard.edu/abs/2015IAWPL..14..939L [5] 刘松杨, 董春曦, 朱颖童, 等.基于角度参数特定边界值的旋转交叉眼干扰容限研究[J].电子与信息学报, 2016, 38(4):906-912. http://www.cnki.com.cn/Article/CJFDTOTAL-DZYX201604019.htmLIU S Y, DONG C X, ZHU Y T, et al.Tolerance analysis of rotating cross-eye jamming based on angle factor specific boundary value[J].Journal of Electronics and Information Technology, 2016, 38(4):906-912(in Chinese). http://www.cnki.com.cn/Article/CJFDTOTAL-DZYX201604019.htm [6] PLESSIS W P D, ODENDAAL J W, JOUBERT J.Tolerance analysis of cross-eye jamming systems[J].IEEE Transactions on Aerospace & Electronic Systems, 2010, 47(1):740-745. http://ieeexplore.ieee.org/xpls/icp.jsp?arnumber=5705705 [7] 张曦, 王星, 王红卫, 等.单脉冲雷达的相干干扰研究[J].现代雷达, 2013, 35(12):21-26. http://www.cnki.com.cn/Article/CJFDTOTAL-XDLD201312005.htmZHANG X, WANG X, WANG H W, et al.A study on Mono-pulse radar coherent jamming[J].Modern Radar, 2013, 35(12):21-26(in Chinese). http://www.cnki.com.cn/Article/CJFDTOTAL-XDLD201312005.htm [8] CANDES E J, TAO T.Near-optimal signal recovery from random projections:Universal encoding strategies [J].IEEE Transactions on Information Theory, 2006, 52(12):5406-5425. doi: 10.1109/TIT.2006.885507 [9] ALMSLMANY A, CAO Q, WANG C.A new airborne self-protection jammer for countering ground radars based on sub-Nyquist[J].IEICE Electronics Express, 2015, 12(10):2015-2091. http://i-scover.ieice.org/iscover/page/ARTICLE_ONLINE_JOURNAL_ELEX_12_10_12_12.20150291 [10] 董创业. 基于DRFM的雷达干扰技术研究[D]. 西安: 西安电子科技大学, 2007: 5-10. http://cdmd.cnki.com.cn/Article/CDMD-10701-2007048783.htmDONG C Y.Researching on radar jamming technology based on DRFM[D].Xi'an:Xidian University, 2007:5-10(in Chinese). http://cdmd.cnki.com.cn/Article/CDMD-10701-2007048783.htm [11] PEI S C, DING J J.Closed-form discrete fractional and affine Fourier transforms[J].IEEE Transactions on Signal Processing, 2000, 48(5):1338-1353. doi: 10.1109/78.839981 [12] 陶然.分数阶傅里叶变换及其应用[M].北京:清华大学出版社, 2009:390-391.TAO R.Fractional Fourier transform and its application[M].Beijing:Tsinghua University Press, 2009:390-391(in Chinese). [13] 方标, 黄高明, 高俊, 等.FRFT域LFM雷达回波信号的压缩采样模型[J].西安电子科技大学学报, 2015, 42(1):200-206. http://www.cnki.com.cn/Article/CJFDTOTAL-XDKD201501033.htmFANG B, HUANG G M, GAO J, et al.Compressive sensing of LFM echo signals in FRFT domains[J].Journals of Xidian University, 2015, 42(1):200-206(in Chinese). http://www.cnki.com.cn/Article/CJFDTOTAL-XDKD201501033.htm [14] FERREIRA J C, FLORES E L, CARRIJO G A.Quantization noise on image reconstruction using model-based compressive sensing[J].IEEE Latin America Transactions, 2015, 13(4):1167-1177. doi: 10.1109/TLA.2015.7106372 [15] MAHAFZA B R.Radar systems analysis and design using MATLAB[M].2nd ed.Boca Raton:CRC Press, 2000. [16] 陈明嗣. 雷达系统仿真与角度干扰技术研究[D]. 成都: 电子科技大学, 2011: 30-32. http://cdmd.cnki.com.cn/Article/CDMD-10614-1011192495.htmCHEN M S.Simulation of radar system and research on angle jamming technology[D].Chengdu:University of Electronic Science and Technology of China, 2011:30-32(in Chinese). http://cdmd.cnki.com.cn/Article/CDMD-10614-1011192495.htm [17] 徐喜安. 单脉冲雷达系统的建模与仿真研究[D]. 成都: 电子科技大学, 2006: 26-28. http://cdmd.cnki.com.cn/Article/CDMD-10614-2006113147.htmXU X A.Modeling and simulation analysis of monopulse radar[D].Chengdu:University of Electronic Science and Technology of China, 2006:26-28(in Chinese). http://cdmd.cnki.com.cn/Article/CDMD-10614-2006113147.htm [18] KULIKOV G Y, KULIKOVA M V.The accurate continuous-discrete extended Kalman filter for radar tracking[J].IEEE Transactions on Signal Processing, 2015, 64(4):948-958. http://ieeexplore.ieee.org/document/7307216/ [19] 王国玉, 汪连栋, 王国良.雷达电子战系统数学仿真与评估[M].北京:国防工业出版社, 2004:295-298.WANG G Y, WANG L D, WANG G L.Mathematical simulation and evaluation of radar ew system[M].Beijing:National Defence Industry Press, 2004:295-298(in Chinese). [20] 闫晓鹏, 栗苹, 耿小明.同步闪烁干扰中闪烁频率的选取[J].北京理工大学学报, 2008, 28(6):553-556. http://www.cnki.com.cn/Article/CJFDTOTAL-BJLG200806019.htmYAN X P, LI P, GENG X M.Study on blinking frequency selection in non-coherent blinking jamming[J].Transactions of Beijing Institute of Technology, 2008, 28(6):553-556(in Chinese). http://www.cnki.com.cn/Article/CJFDTOTAL-BJLG200806019.htm -
下载:
点击查看大图
计量
- 文章访问数: 979
- HTML全文浏览量: 227
- PDF下载量: 430
- 被引次数: 0
