便携式超宽带穿墙成像雷达阵列模式性能研究
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摘要
受限于便携性要求,超宽带穿墙成像雷达可用的天线数量有限,因而面临着如何充分利用有限的天线获取最优成像性能的难题。文中主要比对研究了UWB、TWIR在3种不同天线阵列配置模式下的性能。论述了3种不同的阵列配置模式,分析比对了在3种模式下UWB、TWIR的方位向分辨率和干涉区域,并通过仿真实验进行了验证分析,给出了合理等效孔径和虚拟阵元密度下的最佳阵列性能配置参考。
Considering the requirement of portability,the number of antennas used for the portable ultra-wideband(UWB) through wall imaging radar(TWIR) is limited. It is faced with challenges to take full advantage of antennas to obtain the optimal performance. In this paper,we study three kinds of array configuration modes and compare their imaging performance based on two criterions-cross-range resolution and interference region(IR). Our simulation results show that the array configuration should be considered carefully to get the optimized aperture and element density.
Considering the requirement of portability,the number of antennas used for the portable ultra-wideband(UWB) through wall imaging radar(TWIR) is limited. It is faced with challenges to take full advantage of antennas to obtain the optimal performance. In this paper,we study three kinds of array configuration modes and compare their imaging performance based on two criterions-cross-range resolution and interference region(IR). Our simulation results show that the array configuration should be considered carefully to get the optimized aperture and element density.
引文
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[2]MARTONE A,RANNEY K,INNOCENTI R.Automatic through the wall detection of moving targets using low-frequency ultra-wideband radar[C].Berlin:IEEE Radar Conference,2010:39-43.
[3]HUNT A R.Standoff through-the-wall imaging sensor[C].Pairs:IEEE Radar Conference,2011.
[4]BEERI A,DAISY R.High-resolution through-wall imaging[C].Proceedings of SPIE conference on Sensors,and Command,Control,Communications,and Intelligence(C31)Technologies for Homeland Secuity and Homeland Defense V,2006.
[5]KOCUR D,GAMEC J,SVECOVA M,et al.Imaging method:an efficient algorithm for moving target tracking by UWB radar[J].Acta Polytechnica Hungarica,2010(7):5-24.
[6]DEHMOLLAIAN M,THIEL M,SARABANDI K.Throughthe-wall imaging using differential SAR[J].IEEE Transactions on Geoscience and Remote Sensing,2009,47(6):1289-1296.
[7]FRAZIER L.MDR for law enforcement[J].IEEE Potentials,1998,16(5):23-26.
[8]JIN T,LOU J,ZHOU Z.Extraction of landmine features using a forward-looking ground-penetrating radar with MIMO array[J].IEEE Transactions on Geoscience and Remote Sensing,2012(10):4135-4144.
[9]MCCORKLE J W.Focusing of synthetic aperture ultra wideband data[C].IEEE International Conference on Systems Engeering,1991:1-5.
[10]SCHWARTZ J L,STEINBERG B D.Ultrasparse,ultrawideband arrays[J].IEEE Transactions on Ultrasonics,Ferroelectrics and Frequency Control,1998(45):376-393.
[11]HUNT A R.Random array through the wall imaging sensor[M].Newyork:Johne-wily Press,2006.