Lamb Wave-Based FDM-PPM Method Data Transmission Scheme in Plate Structures.

Tong Xu, Bin Wu, Xiang Gao, Jianfeng Liu, Xiucheng Liu

Abstract read

In one paragraph

Article in Sensors (Basel, Switzerland), 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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5 · Who and what money

Authors and funding

5 authors.

Tong XuCollege of Mechanical & Energy Engineering, Beijing University of Technology, Beijing 100124, China.ORCID 0009-0008-2793-1602

Bin WuSchool of Information Science and Technology, Beijing University of Technology, Beijing 100124, China.

Xiang GaoSchool of Information Science and Technology, Beijing University of Technology, Beijing 100124, China.ORCID 0000-0002-6573-1352

Jianfeng LiuTaian Special Equipment Inspection and Research Institute, Taian 271000, China.

Xiucheng LiuSchool of Information Science and Technology, Beijing University of Technology, Beijing 100124, China.ORCID 0000-0002-1067-8734

Funding

National Natural Science Foundation of China 12272014the State Administration for Market Regulation's Science and Technology Plan Project 2024MK075

6 · The paper itself

Abstract

Lamb wave-based non-electromagnetic communication is an effective solution for real-time information exchange in health monitoring networks of large metallic plate structures. The multimodal nature, dispersive characteristics, and the influence of reflected waves during the propagation of Lamb waves severely limit the duration of communication signals. Within this constrained time, constructing communication signals reasonably is crucial for improving the transmission rate of Lamb wave acoustic data. A coding method based on frequency-division multiplexing-pulse-position modulation (FDM-PPM) is proposed to address the low transmission rate in Lamb wave communication systems. Experimental results demonstrate that the proposed Lamb wave communication system can achieve a maximum transmission rate of up to 50 kbps with a bit error rate as low as 90.7%. Compared with methods using Amplitude-Shift Keying (ASK) and pulse-position modulation (PPM), this method effectively enhances the transmission rate of the Lamb wave communication system while reducing the energy consumption of the excitation signal.

Indexed as

frequency-division multiplexinglamb wavepulse-position modulation

Identifiers

PMID40293034

DOI10.3390/s25061907

PMCPMC11946327

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