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调制状态下目标超分辨成像研究

句彦伟 张燕

现代雷达2013,Vol.35Issue(7):24-27,4.
现代雷达2013,Vol.35Issue(7):24-27,4.

调制状态下目标超分辨成像研究

A Study on Super-resolution Imaging for Modulation Target

句彦伟 1张燕2

作者信息

  • 1. 南京电子技术研究所,南京210039
  • 2. 解放军理工大学理学院,南京211101
  • 折叠

摘要

Abstract

A super-resolution ISAR imaging approach for modulation target is proposed in this paper,which not only resolved influence of modulation,but also improved the range resolution and azimuth resolution.Firstly,complex empirical mode decomposition algorithm is employed to extract object echo and remove modulation echo; Secondly,wide band echo model is built based on autoregression model and Burg algorithm; Thirdly,image resolution is improved based on the auto-regression model; Finally,classical range-Doppler algorithm is used to obtain the robust imaging results.The approach is compared with the other three methods,and the effectiveness of the proposed approach is demonstrated by processing the simulation and real data.

关键词

逆合成孔径雷达成像/复数经验模态分解/超分辨成像

Key words

ISAR imaging/ complex empirical mode decomposition/ super-resolution imaging

分类

信息技术与安全科学

引用本文复制引用

句彦伟,张燕..调制状态下目标超分辨成像研究[J].现代雷达,2013,35(7):24-27,4.

现代雷达

OA北大核心CSCDCSTPCD

1004-7859

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