基于旋转降维的高速隐身目标检测算法
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摘要
高速隐身目标严重压缩了防空导弹雷达导引头的探测威力,尤其限制了线性调频波形在末制导过程中的应用,时频二维高分辨的检测优势被部分削弱。针对此问题,提出一种基于旋转降维的脉冲多普勒雷达主动导引头长时间积累算法,用于导引头对高速隐身目标的检测。该算法通过旋转变换,将回波信号矩阵中距离与速度的耦合去除,使得变换后矩阵在行、列方向相互独立,同时矩阵维度得到降低。对变换后的矩阵作傅里叶变换,得到峰值所对应的弹目相对速度,并对回波信号矩阵进行补偿。仿真条件下,此算法可以将导引头的截获灵敏度大大提高。
The emergence of the high-speed stealth targets severely compresses air defense missile radar seeker detection power,and especially limits linear frequency modulation waveform application in the process of terminal guidance,so that detection advantage on time-frequency two dimension high resolution is partly decreased.Aiming at this problem,a long time accumulation algorithm based on rotating and dimension reduction is proposed for pulsed Doppler radar seeker in order to detect the high-speed stealth target.The coupling between range and velocity in the echo matrix is wiped off by rotating transform,and the rotated matrix is independent in row and array respectively while the matrix dimension is reduced.The velocity between missile and target can be computed by Fourier transform,which is used to compensate the echo matrix.Through the simulation calculation,the seeker sensitivity is improved greatly.
The emergence of the high-speed stealth targets severely compresses air defense missile radar seeker detection power,and especially limits linear frequency modulation waveform application in the process of terminal guidance,so that detection advantage on time-frequency two dimension high resolution is partly decreased.Aiming at this problem,a long time accumulation algorithm based on rotating and dimension reduction is proposed for pulsed Doppler radar seeker in order to detect the high-speed stealth target.The coupling between range and velocity in the echo matrix is wiped off by rotating transform,and the rotated matrix is independent in row and array respectively while the matrix dimension is reduced.The velocity between missile and target can be computed by Fourier transform,which is used to compensate the echo matrix.Through the simulation calculation,the seeker sensitivity is improved greatly.
引文
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[2]甘杰,张杰.隐身目标探测技术现状与发展研究[J].现代雷达,2016,38(8):13-16.GAN J,ZHANG J.A study on situation and development of stealth target detection technology[J].Modern Radar,2016,38(8):13-16.
[3]GRANT R.Review of US stealth aircraft[J].International Aviation,2009(5):36-38.
[4]孙子杰,毛根旺,栗金平.隐身技术在飞行器上的应用[J].重庆理工大学学报(自然科学),2011,25(2):106-111.SUN Z J,MAO G W,LI J P.Research application of stealth technique in aircrafts[J].Journal of Chongqing University of Technology(Natural Science),2011,25(2):106-111.
[5]李希同.外形隐身飞机的电磁散射特性与SAR成像特性分析[D].南京:东南大学,2015.LI X T.The analysis of electromagnetic scattering characteristic of shape-stealth aircraft and SAR imaging characteristic[D].Nanjing:Southeast University,2015.
[6]杨胜男,邵万仁,尚守堂,等.单边膨胀球面二元喷管雷达隐身修形研究[J].航空发动机,2016,42(5):55-62.YANG S N,SHAO W R,SHANG S T,et al.Study on radar stealth shaping for single expansion ramp with spherical 2-D nozzle[J].Aeroengine,2016,42(5):55-62.
[7]THOMASSIN J M,JRME C,PARDOEN T,et al.Poly-mer/carbon based composites as electromagnetic interference(EMI)shielding materials[J].Materials Science&Engineering R Reports,2013,74(7):211-232.
[8]KONG L B,LI Z W,LIU L,et al.Recent progress in some composite materials and structures for specific electromagnetic applications[J].International Materials Reviews,2013,58(4):203-259.
[9]QIN F,BROSSEAU C.A review and analysis of microwave absorption in polymer composites filled with carbonaceous particles[J].Journal of Applied Physics,2012,111(6):061301-24.
[10]KANG Y,CHU Z,ZHANG D,et al.Incorporate boron and nitrogen into graphene to make BCN hybrid nanosheets with enhanced microwave absorbing properties[J].Carbon,2013,61(11):200-208.
[11]王涛,张峻铭,王鹏,等.吸波材料吸波机制及吸波剂性能优劣评价方法[J].磁性材料及器件,2016,47(6):7-13.WANG T,ZHANG J M,WANG P,et al.The absorption mechanism of radar absorber and performance evaluation criterion of absorbent[J].Journal of Magnetic Materials and Devices,2016,47(6):7-13.
[12]蔺国民,孙秦,李艳华,等.隐身飞机综述[J].航空制造技术,2005,30(9):73-76.LIN G M,SUN Q,LI Y H,et al.Survey on stealth aircraft[J].Aeronautical Manufacturing Technology,2005,30(9):73-76.
[13]郦晓翔.雷达反隐身技术的发展及实现方法[J].电子工程师,2008,34(8):3-5.LI X X.An overview of radar anti-stealth technique development[J].Electronic Engineer,2008,34(8):3-5.
[14]赵纯锋,徐子闻.定量分析雷达网反隐身能力的方法[J].空军雷达学院学报,2003,17(1):45-47.ZHAO C F,XU Z W.An approach to the quantitative analysis for anti-stealth capability of radar net[J].Journal of Air Force Radar Academy,2003,17(1):45-47.
[15]李毅,张光甫,梁步阁,等.高功率冲激雷达反隐身机理研究[J].现代雷达,2007,29(8):40-43.LI Y,ZHANG G F,LIANG B G,et al.Study of anti-stealth mechanism of high power impulse[J].Modern Radar,2007,29(8):40-43.
[16]LU Z J,GUAN R,LI X Y,et al.A practical design of X-band receiver frontend in 65-nm CMOS[J].Chinese Journal of Electronics,2016,25(3):413-417.
[17]GE Q,LIU X Y,ZHENG Y K,et al.A flat gain GaN MMIC power amplifier for X band application[J].Journal of Semiconductors,2014,35(12):125004-1-125004-5.
[18]ZHU D D,CHENG Z Q,YAN G G,et al.An ultra-wideband power amplifier based on GaN HEMT[C]∥Proc.of the International Conference on Communication Technology,2015:537-539.
[19]来晋明,罗嘉,由利人,等.基于GaN HEMT的0.8~4GHz宽带平衡功率放大器[J].半导体技术,2015,40(1):44-49.LAI J M,LUO J,YOU L R,et al.Design of 0.8-4GHz broadband banlanced power amplifier based on GaN HEMT[J].Chinese Semiconductor Technology,2015,40(1):44-49.
[20]BERRACHED C,BOUW D,CAMIADE M,et al.Wideband high efficiency high power GaN amplifiers using MIC and quasi-MMIC technologies[C]∥Proc.of the Microwave Integrated Circuits Conference,2013,7(1):424-427.
[21]LUO X,YUE C,ZHOU L,et al.Design of a Ka-band GaN HEMT power amplifier based on simulation[C]∥Proc.of the International Workshop on Microwave&Millimeter Wave Circuits&System Technology,2013:456-459.
[22]王默然,宋振兴,方建洪.X波段85W功率放大模块微带电路设计[J].集成电路应用,2014,40(10):37-39.WANG M R,SONG Z X,FANG J H.Design of X-band 85W power amplifier microstrip circuit[J].Application of Integrated Circuits,2014,40(10):37-39.
[23]CARLSON B D,EVANS E D,WILSON S L.Search radar detection and track with the Hough transform,partⅠ:system concept[J].IEEE Trans.on Aerospace and Electronic Systems,1994,30(1):102-108.
[24]CARLSON B D,EVANS E D,WILSON S L.Search radar detection and track with the Hough transform,partⅡ:detection statistic[J].IEEE Trans.on Aerospace and Electronic Systems,1994,30(1):109-115.
[25]CARLSON B D,EVANS E D,WILSON S L.Search radar detection and track with the Hough transform,partⅢ:detection performance with binary integration[J].IEEE Trans.on Aerospace and Electronic Systems,1994,30(1):116-125.
[26]PERRY R P,DIPIETRO R C,FANTE R L.Coherent integration with range migration using keystone formatting[C]∥Proc.of the Radar Conference,2007:863-868.
[27]ZHANG S S,ZENG T,LONG T,et al.Dim target detection based on keystone transform[C]∥Proc.of the Radar Conference,2005:889-894.
[28]LI Y,ZENG T,LONG T,et al.Range migration compensation and Doppler ambiguity resolution by Keystone transform[C]∥Proc.of the CIE International Conference on Radar,2006:1-4.
[29]XU J,YU J,PENG Y N,et al.Radon-Fourier transform for radar target detection(I):generalized Doppler filter bank[J].IEEE Trans.on Aerospace and Electronic Systems,2011,47(2):1186-1202.
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[31]XU J,YU J,PENG Y N,et al.Radon-Fourier transform(RFT)for radar target detection(III):optimality and fast implementations[J].IEEE Trans.on Aerospace and Electronic Systems,2012,48(2):991-1004.