Compensative Coherent Processing Algorithm for Short Pulse Non-coherent Radar
-
摘要: 为了对短脉冲非相参雷达信号进行相参处理，该文根据其信号特征，建立了参数化信号模型。分析了信号非相参因素，提出了以匹配滤波和参数估计为基础的补偿相参处理算法。通过理论推导证明了对点目标进行补偿相参处理的可行性。并对距离扩展目标进行了理论分析，推导出其获得近似的补偿相参增益所需要满足的条件。并通过仿真验证了理论分析结果。Abstract: Based on the characteristics of short pulse non-coherent radar, the parameterized signal model is established. By analysis on the reasons of no-coherence, compensative coherent processing algorithm based on matching filter and parameter estimation is proposed. The rationality of the compensative coherent processing is proved by the mathematical derivation as to single point target. Then, requirement for the range extended target is analyzed in theory, in the condition of approximate compensative coherent processing. Finally, the theoretical analysis results are verified by simulation.
-
表 1 补偿相参积累的信噪比增益与理论值比较
M 理论值(dB) 仿真估计值(dB) 点目标 距离扩展目标 2 3.01 3.13 2.06 3 4.77 4.52 4.08 5 6.99 6.61 5.36 10 10.00 10.11 9.85 20 13.01 12.92 12.27 50 16.99 17.00 16.39 100 20.00 19.95 19.49 
下载: 导出CSV
-
胡银福, 冯进军.用于雷达的新型真空电子器件[J]. 雷达学报, 2016, 5(4):350–360. DOI: 10.12000/JR16078HU Yinfu and FENG Jinjun. New vacuum electronic devices for radar[J]. Journal of Radar, 2016, 5(4):350–360. DOI: 10.12000/JR16078 钱宝良.国外高功率微波技术的研究现状与发展趋势[J]. 真空电子技术, 2015, 4(2):2–7. DOI: 10.16540/j.cnki.cn11-2485/tn.2015.02.001QIAN Baoliang. The research status and developing tendency of high power microwave technology in foreign countries[J]. Vacuum Electronics, 2015, 4(2): 2–7. DOI: 10.16540/j.cnki.cn11-2485/tn.2015.02.001 XIAO Renzhen, ZHANG Zhiqiang, LIANG Tiezhu, et al. A relativistic backward wave oscillator for directly generating circularly polarized TE11 mode[J]. Physics of Plasmas, 2016, 23(3):554–562.DOI: 10.1063/1.4944915 BLYAKHMAN A B, DAVID C, ROGER W H, et al. Nanosecond giga-watt radar: Indication of small targets moving among heavy clutter[C]. 2007 IEEE Radar Conference, Boston, USA, 2007: 61–64. doi: 10.1109/RADAR.2007.374191. BLYAKHMAN A B, CLUNIE D, MESIATS G, et al. Analysis of nanosecond gigawatt radar[C]. Quasi-Optical Control of Intense Microwave Transmission, Netherlands, 2005: 283–296. doi: 10.1007/1-4020-3638-8_21. RYSKIN N M and TITOV V N. Phase locking and mode switching in a backward-wave oscillator with reflections[J]. IEEE Transactions on Plasma Science, 2016, 44(8):1270–1275.DOI: 10.1109/TPS.2016.2517002 SONG Wei, ZHANG Xiaowei, CHEN Changhua, et al. Enhancing frequency-tuning ability of an improved relativistic backward-wave oscillator[J]. IEEE Transactions on Electron Devices, 201360(1): 494–497. DOI: 10.1109/TED.2012.2230400 王乐, 周子超, 李春化. 提高非相参雷达发射信号相干性的研究[J]. 火控雷达技术, 2012, 41(2): 30–33WANG Le, ZHOU Zhichao, and LI Chunhua. Study on improving coherence of non-coherent radar transmitting signal[J]. Fire Control Radar Technology, 2012,41(2):30–33 Trapp R L. Improved coherent-on-receive radar processing with dynamic transversal filters[C]. Proceedings of the IEEE International Radar Conferenc, London, 1982: 505–508. 丁建江, 张贤达. 接收相干处理算法的分析与评述[J]. 系统工程与电子技术, 2002, 24(11): 25–28DING Jianjiang and ZHANG Xianda. Analysis and discussions on the coherent-on-receive processing arithmetic[J]. Systems Engineering and Electronics , 2002, 24(11):25–28 ZHOU Ruixue, XIA Guifen, ZHAO Yue , et al. Coherent signal processing method for frequency-agile radar[C]. IEEE International Conference on Electronic Measurement & Instruments, Qingdao, China, 2015: 431–434. doi: 10.1109/ICEMI.2015.7494227. GAO Jing, Li F, WANG Chao , et al. ISAR motion compensation based on matching pursuit with Chebyshev polynomials under low SNR[C]. IEEE International Conference on Signal Processing, Communications and Computing, Hong Kong, China, 2016: 1–5. doi: 10.1109/ICSPCC.2016.7753674. CHEN Yichang, LI Gang, Zhang Qingjun, et al. Motion Compensation for airborne SAR via parametric sparse representation[J]. IEEE Transactions on Geoscience and Remote Sensing, 2017, 55(1):551–562. DOI: 10.1109/TGRS.2016.2611522 田超, 文树梁.基于非均匀FFT的长时间相参积累算法[J].电子与信息学报, 2014, 36(6):1374–1380 DOI: 10.3724/SP.J.1146.2013.01264TIAN Chao and WEN Shuliang. A long-term coherent integration algorithm based on non-uniform fast Fourier transform[J]. Journal of Electronics & Information Technology , 2014, 36(6): 1374–1380 DOI: 10.3724/SP.J.1146.2013.01264 ZOU Yongqiang, GAO Xunzhang, and LI Xiang. A sparse representation and GTD model parameter estimation based multiband radar signal coherent compensation method[C]. 2016 CIE International Conference on Radar, Guangzhou, China, 2016: 1–4. doi: 10.1109/RADAR.2016.8059305. 黄培康, 殷红成, 许小剑. 雷达目标特性[M]. 北京: 电子工业出版社, 2010: 229–283.HUANG Peikang, YIN Hongcheng, and XU Xiaojian. Radar Target Character[M]. Bejing: Publishing House of Electronics Industry, 2010: 229–283. GUAN Yin, GONG, Shuxi, ZHANG Shuai, et al. Improved time-domain physical optics for transient scattering analysis of electrically large conducting targets[J]. IET Microwaves, Antennas and Propagation , 2011, 5(5):625–629. DOI: 10.1049/iet-map.2010.0277 -
图(6) / 表(1)
计量
- 文章访问数: 2126
- HTML全文浏览量: 735
- PDF下载量: 76
- 被引次数: 0
下载:
