学术论文

      New UWB imaging algorithm for multiple targets detection

      Abstract:
      Because the conventional ultra wideband (UWB) radar imaging algorithm cannot meet the demand in the capability of multiple targets detection,a novel UWB radar imaging algorithm based on the near field radiation theory of dipole is presented.On the foundation of researching the principle of a time domain imaging algorithm,the back projection (BP) algorithm is derived and analyzed.Firstly,the far field sampling data are transferred to the near field sampling data by using the near field radiation theory of dipole.Then the BP algorithm is applied to target detection.The capability of the new algorithm to detect the multi-target is verified by using the finite-difference time-domain method,and the threedimensional images of targets are obtained.The coupling effect between targets for imaging is analyzed.The simulation results show that the new UWB radar imaging algorithm based on the near field radiation theory of dipole could weaken the coupling effect for imaging,and as a result the quality of imaging is improved.
      Author: Weijun Zhong [1] Chuangming Tong [1] Guorong Huang [2] Yan Geng [3]
      作者单位: Missile Institute, Air Force Engineering University, Sanyuan 713800, P. R. China;State Key Laboratory of Millimeter Waves, Nanjing 210096, P. R. China Engineering Institute, Air Force Engineering University, Xi'an 710038, P. R. China Xi'an Satellite Control Center, Xi'an 710043, P. R. China
      年,卷(期): 2011, 22(6)
      分类号: TN957.52
      机标分类号: TN9 TP3
      在线出版日期: 2012年3月20日
      基金项目: the Key Laboratory of Millimeter Waves of China