A New Method for Multipath Interference Suppression in through-the-wall UWB Radar Imaging

摘要：

When through-the-wall ultra-wideband (UWB) synthetic aperture radar (SAR) is applied to imaging, the interference of multipath spreading between targets will introduce ghosts into the SAR image. This paper proposes a novel technique for through-the-wall UWB SAR imaging with the capability to suppress multipath ghosts. A multipath scattering model is first developed for through-the-wall UWB SAR. By analyzing the model, we obtain an important feature of multipath ghosts in through-the-wall UWB SAR images: aspect dependence. Based on the ghosts aspect dependence, we develop a hidden Markov model (HMM)based method for suppression the ghosts in the SAR images. Simulations show that the proposed method can improve the peak value ratio of real targets and ghosts by about 15 dB.

关键词： Hidden Markov models multipath interference radar imaging synthetic aperture radar ultrawideband radar

作者: Qinyan Tan Yaoliang Song

作者单位: Department of Electronic Engineering and Optoelectronic Technology Nanjing University of Science and Technology Nanjing 210094,Jiangsu,China

会议类型: 国际会议

会议名称: The 2nd IEEE International Conference on Advanced Computer Control(第二届先进计算机控制国际会议 ICACC 2010)

会议地点: 沈阳

会议语种:英文

页码: 535-540

在线出版日期: 2010-03-27（万方平台首次上网日期，不代表论文的发表时间）