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Low-Bandwidth mmW Grating Lobes Suppression Method for 2-D Sparse MIMO Array Imaging

delete2025-07-01
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PRE
AI
Z
Zerui Zhang
C
Chao Li
B
Bo Lin
S
Shiyou Wu
Z
Zheng Shen
X
Xiaojun Liu
G
Guangyou Fang
DOI:10.1109/LAWP.2025.3556188delete
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摘要

摘要

En 中文
在毫米波(mmW)稀疏多输入多输出(MIMO)阵列成像中,过大的阵元间距会产生栅瓣,导致鬼影伪影,尤其是在低带宽条件下。在本文中,通过将二维边界阵列的点扩散函数转换为切比雪夫多项式并分析其特性,提出了一种用于抑制二维稀疏边界MIMO阵列成像中栅瓣和旁瓣的方法。通过频率增强相干因子,结合频率和收发通道变化,降低旁瓣和栅瓣能量,从而首先提高图像质量。然后应用最大滑动平方误差能量补偿项,通过子带图像分析消除栅瓣,同时保留主瓣特性。仿真和实验验证了该方法的有效性。
Keyword:
2-D multiple-input–multiple-output (MIMO) imaging
frequency enhanced coherence factor (FECF)
grating lobes suppression
maximum sliding square error compensation

期刊

IEEE Antennas and Wireless Propagation Letters 封面图
IEEE Antennas and Wireless Propagation Letters
IF:
4.8
论文数:
1.0W
被引数:
2.8W

机构

A
Aerospace Information Research Institute
学者数:
999
论文数: 369
被引数: 4.2K
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