A Multiangle MIMO-SAR Fusion Imaging Method Based on Improved Range Migration Algorithm and Improved Geographic Information Scale Invariant Feature Transform Algorithm

In order to resolve the conflict between high pulse repetition frequency (PRF) and wide-swath imaging in multiangle synthetic aperture radar (SAR), a multiangle imaging model combined with multiple-input multiple-output synthetic aperture radar (MIMO-SAR) is proposed. The model utilizes more freedom...

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Main Authors: Fang Zhou, Zhikuan Jiao, Guoqing Shen, Mengdao Xing, Marina Gashinova
Format: Article
Language:English
Published: IEEE 2025-01-01
Series:IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
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Online Access:https://ieeexplore.ieee.org/document/11015768/
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author Fang Zhou
Zhikuan Jiao
Guoqing Shen
Mengdao Xing
Marina Gashinova
author_facet Fang Zhou
Zhikuan Jiao
Guoqing Shen
Mengdao Xing
Marina Gashinova
author_sort Fang Zhou
collection DOAJ
description In order to resolve the conflict between high pulse repetition frequency (PRF) and wide-swath imaging in multiangle synthetic aperture radar (SAR), a multiangle imaging model combined with multiple-input multiple-output synthetic aperture radar (MIMO-SAR) is proposed. The model utilizes more freedom in azimuth degrees provided by MIMO-SAR to remove azimuth ambiguity caused by low PRF, and successfully solves that contradiction. At the same time, considering the problem of low utilization of spectrum in multiangle imaging SAR, an improved range migration algorithm is proposed, which can effectively increase the utilization of the spectrum for data processing. Finally, an improved method of geographic information-scale invariant feature transform is used to achieve the efficiency fusion of multi-angle imaging results. Simulation and real data experiments show that the effectiveness and superiority of the proposed imaging method, and the precision of the proposed fusion method.
format Article
id doaj-art-ff4268c07b9f42f69e9ca2b0eef60b43
institution Kabale University
issn 1939-1404
2151-1535
language English
publishDate 2025-01-01
publisher IEEE
record_format Article
series IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
spelling doaj-art-ff4268c07b9f42f69e9ca2b0eef60b432025-08-20T03:44:53ZengIEEEIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing1939-14042151-15352025-01-0118139381394910.1109/JSTARS.2025.357395011015768A Multiangle MIMO-SAR Fusion Imaging Method Based on Improved Range Migration Algorithm and Improved Geographic Information Scale Invariant Feature Transform AlgorithmFang Zhou0https://orcid.org/0000-0003-1030-510XZhikuan Jiao1Guoqing Shen2Mengdao Xing3https://orcid.org/0000-0002-4084-0915Marina Gashinova4https://orcid.org/0000-0002-1190-0050School of Computer Science and Information Engineering, Hefei University of Technology, Hefei, ChinaSchool of Computer Science and Information Engineering, Hefei University of Technology, Hefei, ChinaSchool of Computer Science and Information Engineering, Hefei University of Technology, Hefei, ChinaNational Key Laboratory of Radar Signal Processing, Xidian University, Xi’an, ChinaSchool of Engineering, University of Birmingham, Birmingham, U.K.In order to resolve the conflict between high pulse repetition frequency (PRF) and wide-swath imaging in multiangle synthetic aperture radar (SAR), a multiangle imaging model combined with multiple-input multiple-output synthetic aperture radar (MIMO-SAR) is proposed. The model utilizes more freedom in azimuth degrees provided by MIMO-SAR to remove azimuth ambiguity caused by low PRF, and successfully solves that contradiction. At the same time, considering the problem of low utilization of spectrum in multiangle imaging SAR, an improved range migration algorithm is proposed, which can effectively increase the utilization of the spectrum for data processing. Finally, an improved method of geographic information-scale invariant feature transform is used to achieve the efficiency fusion of multi-angle imaging results. Simulation and real data experiments show that the effectiveness and superiority of the proposed imaging method, and the precision of the proposed fusion method.https://ieeexplore.ieee.org/document/11015768/GI-SIFTIRMAMIMO-SARmultiangle (MA)
spellingShingle Fang Zhou
Zhikuan Jiao
Guoqing Shen
Mengdao Xing
Marina Gashinova
A Multiangle MIMO-SAR Fusion Imaging Method Based on Improved Range Migration Algorithm and Improved Geographic Information Scale Invariant Feature Transform Algorithm
IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
GI-SIFT
IRMA
MIMO-SAR
multiangle (MA)
title A Multiangle MIMO-SAR Fusion Imaging Method Based on Improved Range Migration Algorithm and Improved Geographic Information Scale Invariant Feature Transform Algorithm
title_full A Multiangle MIMO-SAR Fusion Imaging Method Based on Improved Range Migration Algorithm and Improved Geographic Information Scale Invariant Feature Transform Algorithm
title_fullStr A Multiangle MIMO-SAR Fusion Imaging Method Based on Improved Range Migration Algorithm and Improved Geographic Information Scale Invariant Feature Transform Algorithm
title_full_unstemmed A Multiangle MIMO-SAR Fusion Imaging Method Based on Improved Range Migration Algorithm and Improved Geographic Information Scale Invariant Feature Transform Algorithm
title_short A Multiangle MIMO-SAR Fusion Imaging Method Based on Improved Range Migration Algorithm and Improved Geographic Information Scale Invariant Feature Transform Algorithm
title_sort multiangle mimo sar fusion imaging method based on improved range migration algorithm and improved geographic information scale invariant feature transform algorithm
topic GI-SIFT
IRMA
MIMO-SAR
multiangle (MA)
url https://ieeexplore.ieee.org/document/11015768/
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