Study on Raw Data-Based Two Aperture Spaceborne SAR-GMTI

GAO Fei; MAO Shi-yi; YUAN Yun-neng; YU Zhen-ming

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Study on Raw Data-Based Two Aperture Spaceborne SAR-GMTI

更新时间：2025-07-16

- Study on Raw Data-Based Two Aperture Spaceborne SAR-GMTI
- Acta Electronica Sinica Vol. 33, Issue 12, Pages: 2105-2110(2005)
- 作者机构：
  
  1. 北京航空航天大学203教研室,北京,100083
  2. 广西大学梧州分校,广西,梧州,543002
  3. 北京航空航天大学203教研室北京,100083
  4. 广西大学梧州分校广西梧州,543002
- 作者简介：
- 基金信息：
- DOI：
  CLC： TN957
- Published：2005
- 稿件说明：
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GAO Fei, MAO Shi-yi, YUAN Yun-neng, et al. Study on Raw Data-Based Two Aperture Spaceborne SAR-GMTI[J]. Acta Electronica Sinica, 2005, 33(12): 2105-2110.
DOI：

GAO Fei, MAO Shi-yi, YUAN Yun-neng, et al. Study on Raw Data-Based Two Aperture Spaceborne SAR-GMTI[J]. Acta Electronica Sinica, 2005, 33(12): 2105-2110. DOI：

摘要

提出了两种原始数据域的双通道SAR-GMTI实现方法.DPCA-Radon方法可以完成无杂波情况下的运动目标检测和估计

DPCA-Frft-ATI方法可以完成受杂波"污染"运动目标的检测和径向速度估计

该方法提高了信杂比

提高了目标检测和估计性能

优于通常的原始数据域方法

也优于图像域的方法

并且可实现运动目标的聚焦以及图像域的重新定位.仿真结果证明了其正确性和有效性.

Abstract

The paper proposes two raw data based approaches for two aperture SAR-GMTI.The method of DPCA-Radon successfully detects and estimates parameters of moving targets in clutter-free environment.The method of DPCA-Frft-ATI achieves these purposes in clutter-rich environment and performs superiorly than commonly used raw data based method and image-based detector via improvement of signal to clutter ratio

also it can focus and relocate moving targets.Simulation results indicate feasibility and effectiveness of the methods.

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