摘要
针对探地雷达地下回波时延估计问题,在详细论述ESPRIT探地雷达时延估计数据预处理过程的基础上,提出一种基于改进空间平滑技术的ESRPIT探地雷达超分辨率时延估计算法。基于FDTD的层状模型仿真数据验证了所提算法的有效性和可靠性。
Aiming at the problem of time delay estimation for buried target echo in ground penetrating radar (GPR) system, the essential preprocessing steps for the application of the estimation of signal parameters via rota- tional invariance technique (ESPRIT) to GPR time delay estimation are described in detail. In particular, a super- resolution time delay estimation algorithm using ESPRIT based on improved spatial smoothing (1SS) method is pro- posed. The simulation data generated by finite difference time domain (FDTD) method using layer model have ver- ified the validity and reliability of the proposed algorithm.
出处
《科学技术与工程》
北大核心
2013年第25期7343-7346,7600,共5页
Science Technology and Engineering
基金
辽宁省博士启动基金项目(2012035)
辽宁省教育厅科学基金项目(L2011027)
航空科学基金项目(2011ZC54009)资助
关键词
探地雷达
时延估计
ESPRIT
改进空间平滑技术
ground penetrating radarsmoothing methodtime delay estimation ESPRITimproved spatial