Jamming detection and erasing method based on the rate-enhanced JTIDS waveform
ZHANG Yu1, WU Zhao1, SONG Jian1,2
1. Tsinghua National Laboratory for Information Science and Technology, Department of Electronic Engineering, Tsinghua University, Beijing 100084, China;
2. Shenzhen City Key Laboratory of Digital TV System, Shenzhen 518000, China
Abstract：Joint tactical information distribution system (JTIDS) is a kind of widely used situational awareness data-link. To solve the performance deterioration problem of the rate-enhanced JTIDS in the presence of partial-band barrage jamming, a low complexity method for interference detection and erasure is proposed. First of all, the signal-to-noise ratio (SNR) of each pulse is estimated and the pulse is classified roughly. Then, the average SNR of all the normal pulses in the time slot is estimated. Finally, a fine pulse classification is performed, and each pulse is given an erasure-factor in a certain strategy. Simulation shows that this method greatly eases the effects of the partial-band barrage jamming on the reception performance and significantly reduces the bit error rate. The method is low complexity and easy to implement.
张彧, 吴钊, 宋健. 基于速率增强JTIDS波形的干扰检测与擦除方法[J]. 清华大学学报（自然科学版）, 2015, 55(8): 821-825.
ZHANG Yu, WU Zhao, SONG Jian. Jamming detection and erasing method based on the rate-enhanced JTIDS waveform. Journal of Tsinghua University(Science and Technology), 2015, 55(8): 821-825.
 梅文华. JTIDS/Link 16 数据链 [M]. 北京: 国防工业出版社, 2007. MEI Wenhua. JTIDS/Link 16 Data-link [M]. Beijing: National Defence Industry Press, 2007. (in Chinese)
 FAN Zhongliang, HU Yuankui. Research on JTIDS-type waveform's anti-jamming performance [J]. Aerospace Electronic Warfare, 2012, 5: 018.
 Jin J, Xie H, Hu J, et al. Characterization of anti-jamming effect on the joint tactical information distribution system (JTIDS) operating in complicated electromagnetic environment [C]// Proc IEEE International Symposium on Electromagnetic Compatibility. Raleigh, North Carolina: IEEE Press, 2014: 997-1000.
 ZHANG Hongxin, WANG Yongbin, LIU Hongbo, et al. Transmission performance analysis of JTIDS in presence of multi-tone jamming over Rician fading channel [J]. Telecommunications Science, 2012, 7: 017.
 Xie J, Wang Y, Zhang H. Research on anti-Jam performance of noncoherent JTIDS [J]. Computer Simulation, 2013, 6: 011.
 吴钊, 张彧, 宋健. 基于LDPC码的速率增强型JTIDS波形设计 [J]. 清华大学学报: 自然科学版, 2015, 55(5): 520-525.WU Zhao, ZHANG Yu, SONG Jian. Design of a rate- enhanced JTIDS waveform based on LDPC [J]. J Tsinghua Univ (Sci and Tech), 2015, 55(5): 520-525. (in Chinese)
 姚富强. 通信抗干扰工程与实践 [M] 北京: 电子工业出版社, 2008.YAO Fuqiang. Communication Anti-jamming Engineering and Practice [M]. Beijing: Electronic Industry Press, 2008. (in Chinese)
 He Y, Cheng Y, Wu G, et al. Performance analysis of FFH/BPSK system with partial band noise jamming and channel estimation error in high-mobility wireless communication scenarios [J]. Chinese Science Bulletin, 2014, 59(35): 5011-5018.
 Zhou Z, Li S, Cheng Y. Wideband energy detection for partial-band interference in FFH systems [C]// Proc Second IEEE Pacific-Asia Conference on Circuits, Communications and System. Kuala Lumpur, Malaysia: IEEE Press, 2010, 1: 390-393.
 李绍胜. 军用认知无线通信系统中的关键技术研究 [D]. 北京: 北京邮电大学, 2011.LI Shaosheng. Research on Key Technologies of Military Cognitive Communication Systems [D]. Beijing: Beijing University of Posts and Telecommunications, 2011. (in Chinese)
 邱永红, 甘仲民. 基于自适应数字波速形成的跳频干扰抑制研究[J]. 通信学报, 2000, 21(7): 39-44.QIU Yonghong, GAN Zhongmin. Research on FH inter- ference suppression based on adaptive digital beam forming [J]. Journal on Communications, 2000, 21(7): 39-44. (in Chinese)
 薛明浩, 马林华, 林志国, 等. 基于LDPC码的跳频抗干扰性能 [J]. 计算机应用, 2011, 31(8): 2037-2039.XUE Minghao, MA Linhuang, LIN Zhiguo, etc al. Anti-jamming performance of the frequency hopping system based on LDPC codes [J]. Computer Application, 2011, 31(8): 2037-2039(in Chinese)