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Deep Learning Framework Using Spatial Attention Mechanisms for Adaptable Angle Estimation Across Diverse Array Configurations

delete2025-01-24
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OA
AI
C
Constantinos M. Mylonakis
P
Pantelis Velanas
P
Pavlos I. Lazaridis
G
Goudos, Sotirios K. *
Z
Zaharis, Zaharias D.
DOI:10.3390/technologies13020046delete
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摘要

摘要

En 中文
无线通信系统的快速发展和对精确、实时信号处理日益增长的需求,推动了到达方向(DoA)估计技术的创新。本文介绍了一种新颖的卷积神经网络(CNN)架构,该架构结合了空间注意力机制与迁移学习框架,以提升DoA估计的准确性和通用性。该模型集成了空间注意力层,能够动态优先处理信息价值最高的信号区域,使其能够分离相关信号并在嘈杂或拥挤的信号环境中抑制干扰。此外,我们利用迁移学习框架,使模型能够以最小的额外训练量泛化至各种天线阵列配置(即平面、线性和环形阵列)。广泛的仿真结果将该模型与现有的DoA估计领域最先进方法进行对比,在多种条件下实现了更优的绝对误差。这种混合方法不仅提高了DoA估计精度,还显著降低了适应新阵列配置时的重新训练需求,使其成为下一代无线通信系统中一种稳健、可扩展的工具。
Keyword:
direction-of-arrival (DoA) estimation
machine learning
convolutional neural networks
spatial attention
transfer learning
multiple-input multiple-output (MIMO) systems
wireless communications

期刊

T
Technologies
IF:
3.6
论文数:
1.3K
被引数:
3.2K

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