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arXiv · 2311.08599

High-speed surface-property recognition by 140-GHz frequency

Abstract

In the field of integrated sensing and communication, there's a growing need for advanced environmental perception. The terahertz (THz) frequency band, significant for ultra-high-speed data connections, shows promise in environmental sensing, particularly in detecting surface textures crucial for autonomous system's decision-making. However, traditional numerical methods for parameter estimation in these environments struggle with accuracy, speed, and stability, especially in high-speed scenarios like vehicle-to-everything communications. This study introduces a deep learning approach for identifying surface roughness using a 140-GHz setup tailored for high-speed conditions. A high-speed data acquisition system was developed to mimic real-world scenarios, and a diverse set of rough surface samples was collected for realistic high-speed datasets to train the models. The model was trained and validated in three challenging scenarios: random occlusions, sparse data, and narrow-angle observations. The results demonstrate the method's effectiveness in high-speed conditions, suggesting terahertz frequencies' potential in future sensing and communication applications.

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Jiacheng Liu, Da Li, Guohao Liu, Yige Qiao, Menghan Wei, Chengyu Zhang, Fei Song, Jianjun Ma. 2023-12-12. High-speed surface-property recognition by 140-GHz frequency. https://arxiv.org/abs/2311.08599

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