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Multiantenna Radar Signal Interference Mitigation Using Complex-Valued Convolutional Neural Networks
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DOI：10.1109/TSMC.2024.3516887.png)
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Modern vehicles increasingly rely on sensors to monitor their environment and to support driver assistance and safety systems. Most vehicles use a variety of different sensors to improve robustness. A vital part of these is the radar sensor. It provides the vehicle not only with location but also with valuable velocity information from surrounding objects. The increasing usage of radar systems in road traffic also causes problems in terms of mutual interference between different radar sensors. This interference leads to broadband disturbances in the signal which must be mitigated to ensure reliable object detection and object angle estimation. In this article, we compare different variants of convolutional neural networks (CNNs) in their ability to mitigate mutual interference for multiantenna radar data. We analyze the potential of using multiantenna data for real-valued CNN (RVCNN) and complex-valued (CVCNN) models, comparing detection, phase reconstruction, and angle estimation performances. Furthermore, we propose a complex-valued CVCNN (CVCNN) architecture using a modified batch normalization method that omits activation scaling. Our experiments show, that using multiantenna data in combination with CVCNNs can greatly improve detection, phase, as well as angle estimation performance and that activation scaling is detrimental to our CVCNN architecture.
Keyword:
Radar
Interference
Radar antennas
Sensors
Prevention and mitigation
Estimation
Signal processing
Convolutional neural networks
Broadband antennas
Antennas
Autonomous driving
convolutional neural networks
radar signal processing
期刊
IF:
10.5
论文数:
1.1W
被引数:
5.0W
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暂无机构信息
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