太赫兹稀疏阵列相干因子栅旁瓣抑制方法

TN95; 在太赫兹成像中,阵列的稀疏化设计会引起栅旁瓣的恶化.在传统相干因子(Coherence Factor,CF)加权的基础上设计了适用于多输入多输出(Multiple-Input Multiple-Output,MIMO)稀疏成像阵列的相位相干因子(Phase Coherence Factor,PCF)和符号相干因子(Sign Coherence Factor,SCF)两种加权栅旁瓣抑制方法.对点目标仿真结果表明,CF、PCF和SCF栅旁瓣抑制后峰值旁瓣比(Peak Side Lobe Ratio,PSLR)分别降低了17.81 dB、24.56 dB和22.74 dB,在340GHz...

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Published in红外与毫米波学报 Vol. 39; no. 4; pp. 434 - 440
Main Authors 宋叶江, 崔振茂, 安健飞, 喻洋, 成彬彬
Format Journal Article
LanguageChinese
Published 中国工程物理研究院微系统与太赫兹研究中心,四川成都 610200 01.08.2020
中国工程物理研究院电子工程研究所,四川绵阳 621999%中国工程物理研究院电子工程研究所,四川绵阳 621999
Subjects
相干因子
栅旁瓣抑制
太赫兹成像
MIMO稀疏阵列
Online AccessGet full text
ISSN1001-9014
DOI10.11972/j.issn.1001-9014.2020.04.007

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Abstract TN95; 在太赫兹成像中,阵列的稀疏化设计会引起栅旁瓣的恶化.在传统相干因子(Coherence Factor,CF)加权的基础上设计了适用于多输入多输出(Multiple-Input Multiple-Output,MIMO)稀疏成像阵列的相位相干因子(Phase Coherence Factor,PCF)和符号相干因子(Sign Coherence Factor,SCF)两种加权栅旁瓣抑制方法.对点目标仿真结果表明,CF、PCF和SCF栅旁瓣抑制后峰值旁瓣比(Peak Side Lobe Ratio,PSLR)分别降低了17.81 dB、24.56 dB和22.74 dB,在340GHz 4T16R稀疏阵列成像系统中的实测结果也表明,PCF和SCF对栅旁瓣的抑制效果分别优于CF 6dB和4dB以上.
AbstractList TN95; 在太赫兹成像中,阵列的稀疏化设计会引起栅旁瓣的恶化.在传统相干因子(Coherence Factor,CF)加权的基础上设计了适用于多输入多输出(Multiple-Input Multiple-Output,MIMO)稀疏成像阵列的相位相干因子(Phase Coherence Factor,PCF)和符号相干因子(Sign Coherence Factor,SCF)两种加权栅旁瓣抑制方法.对点目标仿真结果表明,CF、PCF和SCF栅旁瓣抑制后峰值旁瓣比(Peak Side Lobe Ratio,PSLR)分别降低了17.81 dB、24.56 dB和22.74 dB,在340GHz 4T16R稀疏阵列成像系统中的实测结果也表明,PCF和SCF对栅旁瓣的抑制效果分别优于CF 6dB和4dB以上.
Author 喻洋
安健飞
成彬彬
宋叶江
崔振茂
AuthorAffiliation 中国工程物理研究院电子工程研究所,四川绵阳 621999%中国工程物理研究院电子工程研究所,四川绵阳 621999;中国工程物理研究院微系统与太赫兹研究中心,四川成都 610200
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Author_FL AN Jian-Fei
CHENG Bin-Bin
CUI Zhen-Mao
SONG Ye-Jiang
YU Yang
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DocumentTitle_FL Grating-lobes suppression methods based on coherence factor for terahertz sparse array
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Keywords 相干因子
栅旁瓣抑制
太赫兹成像
MIMO稀疏阵列
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Publisher 中国工程物理研究院微系统与太赫兹研究中心,四川成都 610200
中国工程物理研究院电子工程研究所,四川绵阳 621999%中国工程物理研究院电子工程研究所,四川绵阳 621999
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Snippet TN95; 在太赫兹成像中,阵列的稀疏化设计会引起栅旁瓣的恶化.在传统相干因子(Coherence Factor,CF)加权的基础上设计了适用于多输入多输出(Multiple-Input...
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Title 太赫兹稀疏阵列相干因子栅旁瓣抑制方法
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