| Citation: | WANG Xiongwu, HAO Xinhong, JIA Jianguang, et al. A ranging method of hybrid modulation fuze based on instant correlation frequency domain detection[J]. Journal of Beijing University of Aeronautics and Astronautics, 2020, 46(11): 2176-2183. doi: 10.13700/j.bh.1001-5965.2019.0592(in Chinese)
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For the radio fuze combining chaotic code bi-phase modulation with linear frequency modulation, a ranging method based on instant correlation frequency domain detection is proposed to achieve precise ranging for the ground targets with different scattering characteristics. Before instant correlation in time domain, the local chaotic code and the target echo signal are sampled synchronously with code width as sampling period; to reduce the influence of the target echo signal amplitude on ranging method, target distance and speed information are extracted by Two-Dimensional Fast Fourier Transform (2D-FFT), three feature quantities of the instant correlation window position, harmonic envelope main lobe position and stable Doppler frequency are used as the ranging basis, and precise ranging is achieved in frequency domain. Simulation results show that the judgement results of ranging method are only related to the signal-to-noise ratio of the target signal, regardless of the magnitude of the signal amplitude, and it can achieve precise ranging of the hybrid modulation radio fuze for the ground targets with different scattering characteristics in the circumstance of a very low signal-to-noise ratio -28 dB.
| [1] |
段锐, 张海, 陈祝明, 等.垂直入射区雷达地面散射系数测量与特性研究[J].电子科技大学学报, 2012, 41(3):373-377. http://d.wanfangdata.com.cn/Periodical/dzkjdxxb201203010
DAUN R, ZHANG H, CHEN Z M, et al.Radar terrain scattering return measurement and characteristics research in vertical incidence region[J].Journal of University of Electronic Science and Technology of China, 2012, 41(3):373-377(in Chinese). http://d.wanfangdata.com.cn/Periodical/dzkjdxxb201203010
|
| [2] |
CALLA O P N, HARIT K C, VYAS R, et al.Comparison of measured scattering coefficient of dry soil at X-band with the scattering coefficient estimated using the dielectric constant[C]//IEEE International Geoscience and Remote Sensing Symposium.Piscataway: IEEE Press, 2007: 3135-3137.
|
| [3] |
陈齐乐, 晏祺, 郝新红, 等.无线电近炸引信混沌码调相与线性调频复合调制波形设计与分析[J].兵工学报, 2018, 39(11):2127-2136. http://www.cnki.com.cn/Article/CJFDTotal-BIGO201811006.htm
CHEN Q L, YAN Q, HAO X H, et al.Analysis of transmitting waveform of radio fuze modulated by chaotic bi-phased code and hybrid linear frequency modulation[J].Acta Armamentarii, 2018, 39(11):2127-2136(in Chinese). http://www.cnki.com.cn/Article/CJFDTotal-BIGO201811006.htm
|
| [4] |
蔡炯.基于自相关函数包络检测的复合调制定距方法[J].计算机应用与软件, 2015, 32(9):123-126. http://qikan.cqvip.com/Qikan/Article/Detail?id=665936152
CAI J.Complex modulation ranging method based on autocorrelation function envelope detection[J].Computer Applications and Software, 2015, 32(9):123-126(in Chinese). http://qikan.cqvip.com/Qikan/Article/Detail?id=665936152
|
| [5] |
郝新红.复合调制引信定距理论与方法研究[D].北京: 北京理工大学, 2007: 54-94.
HAO X H.Study on the theory and method of radio fuze based on combining LFM with PRBP modulation[D].Beijing: Beijing Institute of Technology, 2007: 54-94(in Chinese).
|
| [6] |
石润龙, 刘斌, 周军伟.无线电引信频域恒虚警率目标检测算法[J].探测与控制学报, 2010, 32(1):45-48. http://www.cnki.com.cn/Article/CJFDTotal-XDYX201001009.htm
SHI R L, LIU B, ZHOU J W.CFAR target detection algorithm based on frequency domain for radio fuze[J].Journal of Detection & Control, 2010, 32(1):45-48(in Chinese). http://www.cnki.com.cn/Article/CJFDTotal-XDYX201001009.htm
|
| [7] |
韩孟飞, 崔嵬, 吴嗣亮.一种新的雷达引信多门限频域恒虚警率检测算法[J].兵工学报, 2008, 29(12):1422-1426. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=bgxb200812003
HAN M F, CUI W, WU S L.A new multi-threshold frequency domain constant false alarm rate detection algorithm for radar fuse[J].Acta Armamentarii, 2008, 29(12):1422-1426(in Chinese). http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=bgxb200812003
|
| [8] |
韩广超, 王锋, 赵河明, 等.一种新的变步长LMS自适应滤波算法及其应用[J].中北大学学报(自然科学版), 2017, 38(2):140-144. http://www.cqvip.com/QK/94550X/201508/665827365.html
HAN G C, WANG F, ZHAO H M, et al.A new variable step size LMS adaptive filtering algorithm and its application[J].Journal of North University of China(Natural Science Edition), 2017, 38(2):140-144(in Chinese). http://www.cqvip.com/QK/94550X/201508/665827365.html
|
| [9] |
王学敏, 许玉国, 孙永泽, 等.小波降噪在引信时频信号处理系统中的应用[J].探测与控制学报, 2013, 35(6):18-22. http://www.cnki.com.cn/Article/CJFDTotal-XDYX201306006.htm
WANG X M, XU Y G, SUN Y Z, et al.Application of wavelet de-noising in time frequency signal processing system of fuze[J].Journal of Detection & Control, 2013, 35(6):18-22(in Chinese). http://www.cnki.com.cn/Article/CJFDTotal-XDYX201306006.htm
|
| [10] |
ZHANG P, NI Y F, WANG J L.Research on signal denoising method based on adaptive lifting wavelet transform[C]//2018 International Conference on Sensor Networks and Signal Processing (SNSP).Piscataway: IEEE Press, 2018: 306-310.
|
| [11] |
黄琼丹.复杂调制雷达波形设计与信号处理研究[D].西安: 西北工业大学, 2016: 13-24.
HUANG Q D.Research on the complex modulation radar waveform design and signal processing[D].Xi'an: Northwestern Polytechnical University, 2016: 13-24(in Chinese).
|
| [12] |
孔志杰, 郝新红, 栗苹, 等.调频引信谐波时序检测抗干扰方法及实现[J].北京航空航天大学学报, 2018, 44(3):549-555. doi: 10.13700/j.bh.1001-5965.2017.0224
KONG Z J, HAO X H, LI P, et al.Harmonic timing sequence detection anti-jamming method and its implementation for FM fuze[J].Journal of Beijing University of Aeronautics and Astronautics, 2018, 44(3):549-555(in Chinese). doi: 10.13700/j.bh.1001-5965.2017.0224
|
| [13] |
田明浩, 徐晓丹, 刘芳, 等.基于扩频的复合混沌优选序列生成方法[J].沈阳理工大学学报, 2018, 37(5):1-6. http://d.old.wanfangdata.com.cn/Periodical_sygyxyxb201805001.aspx
TIAN M H, XU X D, LIU F, et al.A compound chaos preferred sequence generation method[J].Journal of Shenyang Ligong University, 2018, 37(5):1-6(in Chinese). http://d.old.wanfangdata.com.cn/Periodical_sygyxyxb201805001.aspx
|
| [14] |
SCHROEDER C, ROHLING H.X-band FMCW radar system with variable chirp duration[C]//2010 IEEE Radar Conference.Piscataway: IEEE Press, 2010: 1255-1259.
|
| [15] |
HYUN E, JIN Y S.Human-vehicle classification scheme using Doppler spectrum distribution based on 2D range-Doppler FMCW radar[J].Journal of Intelligent & Fuzzy Systems, 2018, 35(6):6035-6045. http://www.onacademic.com/detail/journal_1000040870305710_8c71.html
|
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