Airborne Silent Radio Frequency Noise Shielding
-
摘要: 为了规避敌方雷达对于己方战机的探测，该文提出一种战机发射射频掩护信号的方法。针对采用恒虚警类检测器(CFAR)算法的敌方雷达，己方目标发射的一定包络的掩护信号可以提升敌方噪声估计电平，达到使己方战机针对该雷达隐身的效果的同时，避免射频掩护电磁信号被敌方电子侦察设备截获，具体包括敌方雷达信号抵达目标时间估计，敌方探测能力评估，掩护噪声包络功率设计等步骤。基于单元平均恒虚警检测器(CA-CFRA)，该文利用数值仿真分析了射频掩护包络和功率对掩护信号被截获概率及目标被探测概率的关系，表明该方法需要恰当的设计掩护包络和平衡信号功率达到更好的射频掩护效果。Abstract: To avoid the detection to own fighters from adversary’s radar, a method is proposed in this paper, under which the fighter transmits radio frequency shielding signals. If Constant False Alarm Rate (CFAR) detector is used in adversary’s radars, adversary’s noise level of radar channel is overestimated when the fighter transmits the certain envelope radio frequency shielding signals by own fighters. The effect of making own fighters invisible to the radar is achieved while radio frequency shielding signals avoid being intercepted by adversary electronic reconnaissance equipment. For these purposes, it is needed to estimate the time of arrival of the adversary’s radar signal to the fighters, evaluate the enemy’s detection capability, and design the envelope and power of the shielding noise. Based on the Cell Average-Constant False Alarm Rate (CA-CFRA) detector, numerical simulation is carried out to analyze the relationship between the radio frequency shielding envelope and the interception probability of the shielding signal and the detection probability of the target. These simulation results show that the shielding method can achieve a better radio frequency shielding effect with properly designed shielding signal envelope.
-
[1] 傅莉, 徐悦, 王俊华, 等. 某型隐身飞机雷达隐身截面积特性分析[J]. 微波学报, 2020, 36(2): 85–89. doi: 10.14183/j.cnki.1005-6122.202002018FU Li, XU Yue, WANG Junhua, et al. Analysis of radar stealth cross section characteristics of a stealth aircraft[J]. Journal of Microwaves, 2020, 36(2): 85–89. doi: 10.14183/j.cnki.1005-6122.202002018 [2] 王谦喆, 何召阳, 宋博文, 等. 射频隐身技术研究综述[J]. 电子与信息学报, 2018, 40(6): 1505–1514. doi: 10.11999/JEIT170945WANG Qianzhe, HE Zhaoyang, SONG Bowen, et al. Overview on RF stealth technology research[J]. Journal of Electronics &Information Technology, 2018, 40(6): 1505–1514. doi: 10.11999/JEIT170945 [3] FAN Xiaoyan, QIN Yufeng, SHANG She, et al. Research on the bastatic RCS characteristics of stealth aircraft[C]. 2015 Asia-Pacific Microwave Conference (APMC), Nanjing, China, 2015: 1–3. doi: 10.1109/APMC.2015.7413458. [4] 贾高伟, 郭正. 国外隐身无人机的发展[J]. 国防科技, 2019, 40(2): 13–16. doi: 10.13943/j.issn1671-4547.2019.02.04JIA Gaowei and GUO Zheng. The development of the foreign stealth UAV[J]. National Defense Technology, 2019, 40(2): 13–16. doi: 10.13943/j.issn1671-4547.2019.02.04 [5] 崔宏林, 田江晓. 浅谈无人机雷达隐身技术[J]. 电子世界, 2019(23): 132–133. doi: 10.19353/j.cnki.dzsj.2019.23.071 [6] ZHU Lei, LIANG Xiaolong, LI Jiong, et al. Simulation analysis on static scattering characteristics of stealth aircraft[C]. 2016 IEEE Advanced Information Management, Communicates, Electronic and Automation Control Conference (IMCEC), Xi’an, China, 2016: 1774–1778. doi: 10.1109/IMCEC.2016.7867524. [7] 汤广富, 甘荣兵, 李华, 等. 一种主动雷达隐身装置的定量分析[J]. 电子与信息学报, 2015, 37(5): 1058–1064. doi: 10.11999/JEIT141226TANG Guangfu, GAN Rongbing, LI Hua, et al. Quantitative Analysis of an Active Radar Stealth Device[J]. Journal of Electronics &Information Technology, 2015, 37(5): 1058–1064. doi: 10.11999/JEIT141226 [8] WANG Changxian, CHEN Mingji, LEI Hongshuai, et al. Radar stealth and mechanical properties of a broadband radar absorbing structure[J]. Composites Part B: Engineering, 2017, 123: 19–27. doi: 10.1016/j.compositesb.2017.05.005 [9] 乔益丽. 浅谈武器系统隐身及雷达设计[J]. 现代导航, 2016, 7(4): 305–308.QIAO Yili. Discussion on stealthy ability of weapon system and radar design[J]. Modern Navigation, 2016, 7(4): 305–308. [10] 何友, 关键, 孟祥伟, 等. 雷达目标检测与恒虚警处理[M]. 2版. 北京: 清华大学出版社, 2011: 36–50.HE You, GUAN Jian, MENG Xiangwei, et al. Radar Target Detection and CFAR Processing[M]. 2nd ed. Beijing: Tsinghua University Press, 2011: 36–50. [11] MATHUR A and WILLETT P K. Local SNR considerations in decentralized CFAR detection[J]. IEEE Transactions on Aerospace and Electronic Systems, 1998, 34(1): 13–22. doi: 10.1109/7.640257 [12] ZHOU Shenghua, XU Hui, HU Liangbing, et al. Research for scattering properties of spatial and frequency diversity MIMO radar targets[C]. The 9th International Conference on Signal Processing, Beijing, China, 2008: 2533–2537. doi: 10.1109/ICOSP.2008.4697665. [13] FISHLER E, HAIMOVICH A, BLUM R S, et al. Spatial diversity in radars-models and detection performance[J]. IEEE Transactions on Signal Processing, 2006, 54(3): 823–838. doi: 10.1109/TSP.2005.862813 [14] 杨明磊, 陈伯孝, 秦国栋, 等. 多载频MIMO雷达的空时超分辨算法[J]. 电子与信息学报, 2009, 31(9): 2048–2052.YANG Minglei, CHEN Baixiao, QIN Guodong, et al. Spatial-temporal super resolution algorithm of multi-carrier-frequency MIMO radar[J]. Journal of Electronics &Information Technology, 2009, 31(9): 2048–2052. [15] FENG Dejun, XU Letao, PAN Xiaoyi, et al. Jamming wideband radar using interrupted-sampling repeater[J]. IEEE Transactions on Aerospace and Electronic Systems, 2017, 53(3): 1341–1354. doi: 10.1109/TAES.2017.2670958 [16] 恽建波, 朱云鹏, 靳学明. 密集假目标干扰的峰均比改善方法[J]. 舰船电子对抗, 2012, 35(2): 54–57. doi: 10.3969/j.issn.1673-9167.2012.02.015YUN Jianbo, ZHU Yunpeng, and JIN Xueming. Improvement method of PAPR of dense false targets jamming[J]. Shipboard Electronic Countermeasure, 2012, 35(2): 54–57. doi: 10.3969/j.issn.1673-9167.2012.02.015 -
下载:
图(13)
计量
- 文章访问数: 851
- HTML全文浏览量: 378
- PDF下载量: 82
- 被引次数: 0
下载:
