TerraSAR-X数据沿轨干涉运动目标检测研究

为检验TerraSAR-X数据在地面运动目标检测(GMTI)应用中的潜力,并验证基于SAR沿轨干涉图的幅度和相位联合统计特性以及恒虚警率的检测方法(ATI-CFAR)对TerraSAR-X数据的适用性,利用TerraSAR-X卫星单发双收模式数据,基于一种ATI-CFAR方法,结合数据特点进行改进,对北京北五环部分路段开展GMTI实验研究.结合地面同步实验进行验证分析,结果表明:1)TerraSAR-X数据能够应用于GMTI,但干涉相位受干扰严重,使用统计的方法确定ATI相位阈值易发生过度估计,导致大量漏检;2)基于车速先验知识确定相位阈值,利用图解法确定ATI幅度阈值,能够有效地改善检测结果...

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Published in北京大学学报（自然科学版） Vol. 56; no. 1; pp. 164 - 172
Main Authors 焦健, 田崇瑞, 黄江辉, 曾琪明
Format Journal Article
LanguageChinese
Published 北京大学遥感与地理信息系统研究所,北京大学地球与空间科学学院,北京100871 20.01.2020
Subjects
合成孔径雷达(SAR)
TerraSAR-X
恒虚警率(CFAR)
地面运动目标检测(GMTI)
沿轨干涉(ATI)
Online AccessGet full text
ISSN0479-8023
DOI10.13209/j.0479-8023.2019.112

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Abstract 为检验TerraSAR-X数据在地面运动目标检测(GMTI)应用中的潜力,并验证基于SAR沿轨干涉图的幅度和相位联合统计特性以及恒虚警率的检测方法(ATI-CFAR)对TerraSAR-X数据的适用性,利用TerraSAR-X卫星单发双收模式数据,基于一种ATI-CFAR方法,结合数据特点进行改进,对北京北五环部分路段开展GMTI实验研究.结合地面同步实验进行验证分析,结果表明:1)TerraSAR-X数据能够应用于GMTI,但干涉相位受干扰严重,使用统计的方法确定ATI相位阈值易发生过度估计,导致大量漏检;2)基于车速先验知识确定相位阈值,利用图解法确定ATI幅度阈值,能够有效地改善检测结果.本文方法检出率和正确率分别达到70％和87.5％,证明了其对TerraSAR-X数据的适用性,反映出TerraSAR-X数据在GMTI应用中的潜力.
AbstractList 为检验TerraSAR-X数据在地面运动目标检测(GMTI)应用中的潜力,并验证基于SAR沿轨干涉图的幅度和相位联合统计特性以及恒虚警率的检测方法(ATI-CFAR)对TerraSAR-X数据的适用性,利用TerraSAR-X卫星单发双收模式数据,基于一种ATI-CFAR方法,结合数据特点进行改进,对北京北五环部分路段开展GMTI实验研究.结合地面同步实验进行验证分析,结果表明:1)TerraSAR-X数据能够应用于GMTI,但干涉相位受干扰严重,使用统计的方法确定ATI相位阈值易发生过度估计,导致大量漏检;2)基于车速先验知识确定相位阈值,利用图解法确定ATI幅度阈值,能够有效地改善检测结果.本文方法检出率和正确率分别达到70％和87.5％,证明了其对TerraSAR-X数据的适用性,反映出TerraSAR-X数据在GMTI应用中的潜力.
Author 焦健
曾琪明
田崇瑞
黄江辉
AuthorAffiliation 北京大学遥感与地理信息系统研究所,北京大学地球与空间科学学院,北京100871
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ZENG Qiming
TIAN Chongrui
HUANG Jianghui
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Keywords 合成孔径雷达(SAR)
TerraSAR-X
恒虚警率(CFAR)
地面运动目标检测(GMTI)
沿轨干涉(ATI)
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Snippet 为检验TerraSAR-X数据在地面运动目标检测(GMTI)应用中的潜力,并验证基于SAR沿轨干涉图的幅度和相位联合统计特性以及恒虚警率的检测方法(ATI-CFAR)对TerraSAR-X数据的适用...
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Title TerraSAR-X数据沿轨干涉运动目标检测研究
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