Cooperated Moving Target Detection Approach for PA-FDA Dual-Mode Radar in Range-Ambiguous Clutter

This paper proposes a cooperated range ambiguous clutter suppression method for moving target detection in the background of range-ambiguous clutter with a phased array (PA)–frequency diverse array (FDA) dual-mode radar. With the FDA mode, the range-ambiguous clutters are discriminated in the transm...

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Main Authors: Zhixin Liu, Shengqi Zhu, Jingwei Xu, Lan Lan, Xiongpeng He, Ximin Li
Format: Article
Language:English
Published: MDPI AG 2023-01-01
Series:Remote Sensing
Subjects:
Online Access:https://www.mdpi.com/2072-4292/15/3/692
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author Zhixin Liu
Shengqi Zhu
Jingwei Xu
Lan Lan
Xiongpeng He
Ximin Li
author_facet Zhixin Liu
Shengqi Zhu
Jingwei Xu
Lan Lan
Xiongpeng He
Ximin Li
author_sort Zhixin Liu
collection DOAJ
description This paper proposes a cooperated range ambiguous clutter suppression method for moving target detection in the background of range-ambiguous clutter with a phased array (PA)–frequency diverse array (FDA) dual-mode radar. With the FDA mode, the range-ambiguous clutters are discriminated in the transmit spatial frequency domain, and thus the clutter covariance matrixes (CCMs) corresponding to unambiguous and ambiguous regions can be independently estimated. Therefore, the enhanced CCM can be reconstructed by using a linear combination of these distinguished CCMs from different range regions. With the PA mode, the enhanced CCM is applied, thus taking advantages of its high beampattern gain as well as alleviating the range ambiguous clutter suppression problem. Simulation results are presented to verify the effectiveness of the proposed method in range-ambiguous clutter scenarios.
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spelling doaj.art-df4f2f1503444cb69101ee3379da8c142023-11-16T17:52:52ZengMDPI AGRemote Sensing2072-42922023-01-0115369210.3390/rs15030692Cooperated Moving Target Detection Approach for PA-FDA Dual-Mode Radar in Range-Ambiguous ClutterZhixin Liu0Shengqi Zhu1Jingwei Xu2Lan Lan3Xiongpeng He4Ximin Li5National Laboratory of Radar Signal Processing, Xidian University, Xi’an 710071, ChinaNational Laboratory of Radar Signal Processing, Xidian University, Xi’an 710071, ChinaNational Laboratory of Radar Signal Processing, Xidian University, Xi’an 710071, ChinaNational Laboratory of Radar Signal Processing, Xidian University, Xi’an 710071, ChinaNational Laboratory of Radar Signal Processing, Xidian University, Xi’an 710071, ChinaNational Laboratory of Radar Signal Processing, Xidian University, Xi’an 710071, ChinaThis paper proposes a cooperated range ambiguous clutter suppression method for moving target detection in the background of range-ambiguous clutter with a phased array (PA)–frequency diverse array (FDA) dual-mode radar. With the FDA mode, the range-ambiguous clutters are discriminated in the transmit spatial frequency domain, and thus the clutter covariance matrixes (CCMs) corresponding to unambiguous and ambiguous regions can be independently estimated. Therefore, the enhanced CCM can be reconstructed by using a linear combination of these distinguished CCMs from different range regions. With the PA mode, the enhanced CCM is applied, thus taking advantages of its high beampattern gain as well as alleviating the range ambiguous clutter suppression problem. Simulation results are presented to verify the effectiveness of the proposed method in range-ambiguous clutter scenarios.https://www.mdpi.com/2072-4292/15/3/692frequency diverse arrayphased arrayrange-ambiguous clutterspace-time adaptive processingmoving target
spellingShingle Zhixin Liu
Shengqi Zhu
Jingwei Xu
Lan Lan
Xiongpeng He
Ximin Li
Cooperated Moving Target Detection Approach for PA-FDA Dual-Mode Radar in Range-Ambiguous Clutter
Remote Sensing
frequency diverse array
phased array
range-ambiguous clutter
space-time adaptive processing
moving target
title Cooperated Moving Target Detection Approach for PA-FDA Dual-Mode Radar in Range-Ambiguous Clutter
title_full Cooperated Moving Target Detection Approach for PA-FDA Dual-Mode Radar in Range-Ambiguous Clutter
title_fullStr Cooperated Moving Target Detection Approach for PA-FDA Dual-Mode Radar in Range-Ambiguous Clutter
title_full_unstemmed Cooperated Moving Target Detection Approach for PA-FDA Dual-Mode Radar in Range-Ambiguous Clutter
title_short Cooperated Moving Target Detection Approach for PA-FDA Dual-Mode Radar in Range-Ambiguous Clutter
title_sort cooperated moving target detection approach for pa fda dual mode radar in range ambiguous clutter
topic frequency diverse array
phased array
range-ambiguous clutter
space-time adaptive processing
moving target
url https://www.mdpi.com/2072-4292/15/3/692
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