基于分段拟合的非线性组合调制雷达信号设计

doi:10.11772/j.issn.1001-9081.2017.03.736

计算机应用 ›› 2017, Vol. 37 ›› Issue (3): 736-740.DOI: 10.11772/j.issn.1001-9081.2017.03.736

基于分段拟合的非线性组合调制雷达信号设计

张朝霞^1,2, 刘杰^1,2, 赵岩^1,2, 胡秀^1,2, 杨玲珍^1,2

1. 新型传感器与智能控制教育部重点实验室(太原理工大学), 太原 030024;
2. 太原理工大学物理与光电工程学院, 太原 030024

收稿日期:2016-08-09 修回日期:2016-10-16 出版日期:2017-03-10 发布日期:2017-03-22
通讯作者: 张朝霞
作者简介:张朝霞(1977-),女,山西太原人,副教授,博士,主要研究方向:超宽带雷达信号检测与应用;刘杰(1991-),男,湖北武汉人,硕士研究生,主要研究方向:混沌雷达成像;赵岩(1989-),男,河南邓州人,硕士研究生,主要研究方向:超宽带雷达、脉冲压缩雷达;胡秀(1991-),女,湖北孝感人,硕士研究生,主要研究方向:超宽带混沌雷达;杨玲珍(1973-),女,山西临汾人,教授,博士,主要研究方向:非线性光学、光纤激光器混沌信号产生。
基金资助:
国家自然科学基金资助项目（61575137，61377089）；山西省自然科学基金资助项目（2013011019-6）；山西省教育厅科技创新项目（2014112）；山西省科学技术发展计划（工业）项目（20140321003-02）；太原市万柏林区科技项目（20140306）。

Radar signal design based on nonlinear combination modulation of piecewise fitting

ZHANG Zhaoxia^1,2, LIU Jie^1,2, ZHAO Yan^1,2, HU Xiu^1,2, YANG Lingzhen^1,2

1. Key Laboratory of Advanced Transducers and Intelligent Control System, Ministry of Education(Taiyuan University of Technology), Taiyuan Shanxi 030024, China;
2. College of Physics and Optoelectronics, Taiyuan University of Technology, Taiyuan Shanxi 030024, China

Received:2016-08-09 Revised:2016-10-16 Online:2017-03-10 Published:2017-03-22
Supported by:
This work is partially supported by National Natural Science Foundation of China (61575137, 61377089), Natural Science Foundation of Shanxi Province (2013011019-6), Science and Technology Innovation Project of Shanxi Province (2014112), Science and Technology Development Plan (Industrial) Project of Shanxi Province (20140321003-02).

摘要/Abstract

摘要： 线性调频与伪随机码组合调制的雷达信号可增加信号复杂度，在降低信号被截获概率方面有突出优势，但该组合具有线性调频高旁瓣，且无法克服加窗处理后主瓣宽度增大的缺点。利用驻留相位产生的非线性调频信号能够抑制旁瓣的特点，提出分段拟合的非线性调频与巴克码调制相结合的方法，将其各自的优点加以结合，不仅可以减小距离与速度模糊度，而且可以抑制旁瓣。对该组合信号的显函数模型仿真曲线和模糊函数图进行分析，仿真结果表明，该方法不仅可以降低距离与速度模糊度、降低信号被低截获概率，而且产生了比传统非线性调频更低的旁瓣，说明了该方法用于雷达信号的可行性与优越性。

关键词: 组合调制, 驻留相位原理, 非线性调频, 显函数模型, 分段拟合

Abstract: The combinational modulated radar signal by linear frequency modulation and pseudo random code can increase signal complexity and reduce the probability of signal interception. However, this combination keeps the disadvantage of high sidelobe of linear frequency modulation and cannot overcome the increase of main lobe width caused by adding window function. Using the advantages of nonlinear frequency modulation signal generated by traditional stationary phase principle in suppressing sidelobe, a method which combined piecewise fitting nonlinear frequency modulation with Barker code modulation was proposed, and by using their respective advantages, the proposed method can not only reduce the ambiguity between distance and velocity, but also suppress the sidelobe. Finally, the simulation curve of explicit function model of this signal and ambiguity function were analyzed. The simulation results show that this method not only further reduces the ambiguity between distance and velocity and improves the performance of low probability signal interception, but also produces lower sidelobe than that of traditional nonlinear frequency modulation, which illustrates the feasibility and efficiency of the method used for radar signal.

Key words: combination modulation, stationary phase principle, nonlinear frequency modulation, explicit function model, piecewise fitting

中图分类号:

TN958.3

张朝霞, 刘杰, 赵岩, 胡秀, 杨玲珍. 基于分段拟合的非线性组合调制雷达信号设计[J]. 计算机应用, 2017, 37(3): 736-740.

ZHANG Zhaoxia, LIU Jie, ZHAO Yan, HU Xiu, YANG Lingzhen. Radar signal design based on nonlinear combination modulation of piecewise fitting[J]. Journal of Computer Applications, 2017, 37(3): 736-740.

参考文献

[1] 张锡熊.低截获概率(LPI)雷达的发展[J].现代雷达,2003,25(12):1-4.(ZHANG X X. Development of LPI radar[J]. Modern Radar, 2003, 25(12):1-4.)
[2] 王洪迅,王士岩,王星,等.瞬时测频系统的线性调频信号分析及改进[J].兵工学报,2014,35(8):1193-1199.(WANG H X, WANG S Y, WANG X, et al. Analysis of LFM signals and improvement of IFM system[J]. Acta Armamentarii, 2014, 35(8):1193-1199.)
[3] HE Y, ZHANG C S, TANG X M, et al. Coherent integration loss due to pulses loss and phase modulation in passive bistatic radar[J]. Digital Signal Processing, 2013, 23(4):1265-1276.
[4] HAO H. Multi component LFM signal detection and parameter estimation based on EEMD-FRFT[J]. Optik-International Journal for Light and Electron Optics, 2013, 124(23):6093-6096.
[5] 刘旭波,司锡才,陆满君,等.基于积分包络的LPI雷达信号快速参数估计[J].系统工程与电子技术,2010,32(10):2031-2035.(LIU X B, SI X C, LU M J, et al. Qucik estimation to parameters of LPI radar-signals based on integral-envelope[J]. Systems Engineering and Electronics, 2010, 32(10):2031-2035.)
[6] GULUM T O, ERDOGAN A Y, YILDIRIM T, et al. A parameter extraction technique for FMCW radar signals using Wigner-Hough-Radon transform[C]//Proceedings of the 2012 IEEE Radar Conference. Piscataway, NJ:IEEE, 2012:847-852.
[7] 于超鹏,郝亮飞,谢金华.线性调频和巴克码组合调制雷达信号[J].探测与控制学报,2009,31(5):20-24.(YU C P, HAO L F, XIE J H. Hybrid radar signal composed modulation of linear frequency and Barker phase coded modulation[J]. Journal of Detection and Control, 2009, 31(5):20-24.).
[8] LIU J, ZHAO H, ZHU Y. The ambiguity function of PN-chirp pulse signal[C]//Proceedings of the 2011 International Conference on Information Science and Technology. Piscataway, NJ:IEEE, 2011:543-547.
[9] 刘静,赵惠昌,周新刚,等.伪码与线性调频复合调制信号分析[J].兵工学报,2011,32(10):1217-1222.(LIU J, ZHAO H C, ZHOU X G, et al. The analysis of combination of chirp modulation and pseudo noise phase modulation signal[J]. Acta Armamentarii, 2011, 32(10):1217-1222.)
[10] GOVONI M A, LI H, KOSINSKI J A. Range-Doppler resolution of the linear-FM noise radar waveform[J]. IEEE Transactions on Aerospace and Electronic Systems, 2013, 49(1):658-664.
[11] LIU X-Q. High-precision parameters estimation algorithm of combined PRBC and LFM[EB/OL].[2016-01-07]. http://xueshu.baidu.com/s?wd=paperuri%3A%28f3f53b0a082f5292900722b83cbc1d92%29&filter=sc_long_sign&tn=SE_xueshusource_2kduw22v&sc_vurl=http%3A%2F%2Fen.cnki.com.cn%2FArticle_en%2FCJFDTotal-WXDG201402010.htm&ie=utf-8&sc_us=193503310555555627.
[12] 宋军,刘渝,薛妍妍.LFM-BPSK复合调制信号识别与参数估计[J].南京航空航天大学学报,2013,45(2):217-224.(SONG J, LIU Y, XUE Y Y. Parameter estimation and recognition of hybrid modulated signal combining BPSK with LF[J]. Journal of Nanjing University of Aeronautics and Astronautics, 2013, 45(2):217-224.)
[13] 曾德国,熊辉,龙柯宇,等.伪码线性调频复合信号快速参数估计方法[J].系统工程与电子技术,2010,32(5):891-894.(ZENG D G, XIONG H, LONG K Y, et al. Fast parameter estimation approach of reconnaissance signal combined PRBC and LFM[J]. Systems Engineering and Electronics, 2010, 32(5):891-894.)
[14] VIZITIU I, ANTON L, POPESCU F, et al. The synthesis of some NLFM laws using the stationary phase principle[C]//Proceedings of the 201210th International Symposium on Electronics and Telecommunications. Piscataway, NJ:IEEE, 2012:377-380.
[15] 徐飞,陈建春,李滢昕.基于FPGA的非线性调频信号脉冲压缩的实现[J].电子科技, 2014,27(9):106-108.(XU F, CHEN J C, LI Y X. Implementation of non-linear frequency modulation signals pulse compression based on FPGA[J]. Electronic Science and Technology, 2014, 27(9):106-108.)
[16] VIZITIU I C. Some aspects of sidelobe reduction in pulse compression radars using NLFM signal processing[J]. Progress in Electromagnetics Research C, 2014, 47:119-129.
[17] 王晓华.基于调频函数和数据拟合的非线性调频信号波形设计[J].舰船电子对抗,2009,32(6):97-99.(WANG X H. Design of non-linear frequency modulation signal waveform based on frequency modulation function and data fitting[J]. Shipboard Electronic Countermeasure, 2009, 32(6):97-99.)
[18] 鲍坤超,陶海红,廖桂生.基于多项式拟合的非线性调频波形设计[J].信号处理,2008,24(2):189-191.(BAO K C, TAO H H, LIAO G S. Novel NLFM waveform design based on the polynomial fitting[J]. Signal Processing, 2008, 24(2):189-191.)

基于分段拟合的非线性组合调制雷达信号设计

Radar signal design based on nonlinear combination modulation of piecewise fitting

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