首页> 外文期刊>Aerospace and Electronic Systems, IEEE Transactions on >MVDR Beamforming for Through-the-Wall Radar Imaging
【24h】

MVDR Beamforming for Through-the-Wall Radar Imaging

机译:MVDR波束成形技术可用于全程雷达成像

获取原文
获取原文并翻译 | 示例
           

摘要

We present high-definition imaging for targets behind walls and enclosed structures based on constrained minimization RF multisensor processing. Minimum variance distortionless response (MVDR) beamforming is used on both sensor-frequency raw data radar returns and spatial spectrum data, which is obtained by the Fourier transform of the delay and sum beamformer image. We compare both methods for near-field and far-field scenes. The paper considers both cases of known and unknown wall parameters and uses manifold constraints to allow target localization in high-definition imaging in the presence of wall errors. Also, through analyses and simulations, we show how to effectively use the spatial spectrum to improve covariance matrix estimation and subsequently enhance image quality in the sense of lower sidelobes.
机译:我们基于受限的最小化RF多传感器处理技术,为墙和封闭结构后面的目标提供高清成像。最小频率无失真响应(MVDR)波束成形用于传感器频率原始数据雷达回波和空间频谱数据,这是通过延迟和求和波束成形器图像的傅立叶变换获得的。我们比较了近场和远场场景的两种方法。本文考虑了已知和未知壁参数的情况,并使用歧管约束来在存在壁误差的情况下在高清成像中实现目标定位。此外,通过分析和仿真,我们展示了如何有效地使用空间频谱来改善协方差矩阵估计,并随后在较低旁瓣的意义上提高图像质量。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号