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A Novel Approach of Slope Detection Combined with Lv’s Distribution for Airborne SAR Imagery of Fast Moving Targets

This paper presents a fast SAR imagery algorithm for Ground Moving Target Imaging (GMTIm) based on the slope detection strategy combined with Time-Frequency Representation (TFR), which is known as Lv’s Distribution (LVD). This fast imagery algorithm focuses on the solution of the ambiguity problems... Full description

Journal Title: Remote Sensing 2018, Vol.10(5), p.764
Main Author: Zhao, Yuefeng
Other Authors: Han, Shengliang , Yang, Jimin , Zhang, Liren , Xu, Huaqiang , Wang, Jingjing
Format: Electronic Article Electronic Article
Language: English
Subjects:
ID: E-ISSN: 20724292 ; DOI: Remote Sens. 2018, 10(5), 764; 10.3390/rs10050764
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recordid: proquest2056402163
title: A Novel Approach of Slope Detection Combined with Lv’s Distribution for Airborne SAR Imagery of Fast Moving Targets
format: Article
creator:
  • Zhao, Yuefeng
  • Han, Shengliang
  • Yang, Jimin
  • Zhang, Liren
  • Xu, Huaqiang
  • Wang, Jingjing
subjects:
  • Doppler Effect
  • Velocity
  • Image Detection
  • Synthetic Aperture Radar
  • Moving Targets
  • Algorithms
  • Target Recognition
  • Algorithms
  • Frequency Dependence
  • Frequency Modulation
  • Chirp
  • Computer Simulation
  • Velocity
  • Tracking
ispartof: Remote Sensing, 2018, Vol.10(5), p.764
description: This paper presents a fast SAR imagery algorithm for Ground Moving Target Imaging (GMTIm) based on the slope detection strategy combined with Time-Frequency Representation (TFR), which is known as Lv’s Distribution (LVD). This fast imagery algorithm focuses on the solution of the ambiguity problems and relevant heavy computing load in SAR imagery. Firstly, according to the relationship between the slope of the range walk trajectory and the cross-track velocity of moving target, a new high-efficiency slope detection strategy based on gradient and level-line angle is presented in the image domain. Then, the Doppler centroid shift induced by cross-track velocity can also be obtained. Secondly, owing to the cross-track velocity estimated before, the Range Walk Migration Correction (RWMC) can be performed to concentrate the echo response of the moving target into a single range cell. Finally, due to the superior performance in representing multi-component Linear Frequency Modulation (LFM) signal,...
language: eng
source:
identifier: E-ISSN: 20724292 ; DOI: Remote Sens. 2018, 10(5), 764; 10.3390/rs10050764
fulltext: fulltext_linktorsrc
issn:
  • 20724292
  • 2072-4292
url: Link


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titleA Novel Approach of Slope Detection Combined with Lv’s Distribution for Airborne SAR Imagery of Fast Moving Targets
creatorZhao, Yuefeng ; Han, Shengliang ; Yang, Jimin ; Zhang, Liren ; Xu, Huaqiang ; Wang, Jingjing
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identifierE-ISSN: 20724292 ; DOI: Remote Sens. 2018, 10(5), 764; 10.3390/rs10050764
subjectDoppler Effect ; Velocity ; Image Detection ; Synthetic Aperture Radar ; Moving Targets ; Algorithms ; Target Recognition ; Algorithms ; Frequency Dependence ; Frequency Modulation ; Chirp ; Computer Simulation ; Velocity ; Tracking
descriptionThis paper presents a fast SAR imagery algorithm for Ground Moving Target Imaging (GMTIm) based on the slope detection strategy combined with Time-Frequency Representation (TFR), which is known as Lv’s Distribution (LVD). This fast imagery algorithm focuses on the solution of the ambiguity problems and relevant heavy computing load in SAR imagery. Firstly, according to the relationship between the slope of the range walk trajectory and the cross-track velocity of moving target, a new high-efficiency slope detection strategy based on gradient and level-line angle is presented in the image domain. Then, the Doppler centroid shift induced by cross-track velocity can also be obtained. Secondly, owing to the cross-track velocity estimated before, the Range Walk Migration Correction (RWMC) can be performed to concentrate the echo response of the moving target into a single range cell. Finally, due to the superior performance in representing multi-component Linear Frequency Modulation (LFM) signal,...
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descriptionThis paper presents a fast SAR imagery algorithm for Ground Moving Target Imaging (GMTIm) based on the slope detection strategy combined with Time-Frequency Representation (TFR), which is known as Lv’s Distribution (LVD). This fast imagery algorithm focuses on the solution of the ambiguity problems and relevant heavy computing load in SAR imagery. Firstly, according to the relationship between the slope of the range walk trajectory and the cross-track velocity of moving target, a new high-efficiency slope detection strategy based on gradient and level-line angle is presented in the image domain. Then, the Doppler centroid shift induced by cross-track velocity can also be obtained. Secondly, owing to the cross-track velocity estimated before, the Range Walk Migration Correction (RWMC) can be performed to concentrate the echo response of the moving target into a single range cell. Finally, due to the superior performance in representing multi-component Linear Frequency Modulation (LFM) signal,...
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abstractThis paper presents a fast SAR imagery algorithm for Ground Moving Target Imaging (GMTIm) based on the slope detection strategy combined with Time-Frequency Representation (TFR), which is known as Lv’s Distribution (LVD). This fast imagery algorithm focuses on the solution of the ambiguity problems and relevant heavy computing load in SAR imagery. Firstly, according to the relationship between the slope of the range walk trajectory and the cross-track velocity of moving target, a new high-efficiency slope detection strategy based on gradient and level-line angle is presented in the image domain. Then, the Doppler centroid shift induced by cross-track velocity can also be obtained. Secondly, owing to the cross-track velocity estimated before, the Range Walk Migration Correction (RWMC) can be performed to concentrate the echo response of the moving target into a single range cell. Finally, due to the superior performance in representing multi-component Linear Frequency Modulation (LFM) signal,...
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