基于DTMB的AmBC低功率解调电路设计

International Conference on Green Communication, Network, and Internet of Things Pub Date : 2023-03-08 DOI:10.1117/12.2667482

ChengXiao Ruan, Yi. Zhu, Hongyi Wang, Liming Zheng

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引用次数: 0

摘要

AmBC (Ambient Backscatter Communication)技术的出现，使得IoT(物联网)设备借助环境射频信号完成通信成为可能。DTMB (Digital Terrestrial Multimedia Broadcast)信号具有国内覆盖率高、稳定性强的特点，与AmBC相结合具有天然的优势。然而，现有基于DTMB的AmBC信号解调算法需要接收机实现模数转换，难以应用于低功耗物联网设备。因此，本文提供了一种低功耗解调电路的设计方案，其中接收机可以识别DTMB信号的帧头和帧体，选择相应的比较阈值，得到数字解调信号。最后，通过仿真验证了该方案的有效性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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The design of low-power demodulation circuit for AmBC based on DTMB

The emergence of AmBC (Ambient Backscatter Communication) technology makes it possible for IoT (Internet of Things) devices to complete communication with the help of ambient RF signals. With high domestic coverage and strong stability, DTMB (Digital Terrestrial Multimedia Broadcast) signals have natural advantages in combination with AmBC. However, the existing AmBC signal demodulation algorithm based on DTMB requires the receiver to realize analog-to-digital conversion, which is difficult to be applied to low-power IoT devices. Therefore, this paper provides a design scheme of a low-power demodulation circuit, in which the receiver can identify the frame header and frame body of the DTMB signal, select the corresponding comparison threshold and get the digital demodulation signal. Finally, the scheme is verified by simulation.

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International Conference on Green Communication, Network, and Internet of Things

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