Journal of Systems Engineering and Electronics ›› 2011, Vol. 33 ›› Issue (10): 2226-2229.doi: 10.3969/j.issn.1001-506X.2011.10.16

• 传感器与信号处理 • 上一篇    下一篇

基于目标特性增强的频带缺失雷达信号融合处理

叶钒1, 何峰1, 朱炬波2, 张永胜1   

  1. 1.国防科学技术大学电子科学与工程学院, 湖南 长沙 410073;
    2. 国防科学技术大学理学院, 湖南 长沙 410073
  • 出版日期:2011-10-15 发布日期:2010-01-03

Multi-radar signals fusion imaging with frequency-band
 omissions based on target feature enhancement

YE Fan1, HE Feng1, ZHU Ju-bo2, ZHANG Yong-sheng1   

  1. 1.School of Electronic Science and Technology, National University of Defense Technology, Changsha 410073, China; 
    2. College of Science, National University of Defense Technology, Changsha 410073, China
  • Online:2011-10-15 Published:2010-01-03

摘要:

由于战场电磁环境复杂,使得在某些频段上雷达信号受到了干扰而无法用于成像。如果仅利用单部雷达在可用频段上的回波信号进行成像,则图像的分辨率无法满足实际需求。为了综合利用多部频带缺失雷达的信号,将频带缺失的多雷达信号融合问题转化为一个信号表示问题。为了增强目标特性,将合成孔径雷达(synthetic aperture radar, SAR)图像增强技术引入到多雷达信号融合处理中,用正则化方法来增强目标的点特性和边缘特性。此融合处理方法不仅适用于多部频带缺失雷达的信号融合,而且无需极坐标插值来完成相位解耦,更能增强目标特性。仿真实验验证了本文方法有效性。

Abstract:

Because of the complicated electromagnetism environment of battlefield, radar signals in some frequency-bands cannot be used for imaging due to interference. If the echo signal of a single radar in available bands is used for imaging, the image resolution may not satisfy practical requirements. To synthetically utilize multi-radar signals, the problem of multi-radar signals fusion with frequencyband omissions is transformed into a signal representation problem. On the other hand, the synthetic aperture radar (SAR) image enhanced technology is introduced  into multi-radar signal fusion processing to enhance target features. The regularization is used to enhance point and edge features. This fusion processing is an application to multi-radar signals fusion with frequency-band omissions. While it dispenses polar coordinate interpolation, it can enhance target features. The experimental results show the validity of the proposed method.