双频协同反向散射通信系统

2022 International Conference on Microwave and Millimeter Wave Technology (ICMMT) Pub Date : 2022-08-12 DOI:10.1109/ICMMT55580.2022.10022595

Cong Ding, Jun‐Lin Zhan, Hao Chen, Zhenguo Liu, Wei‐Bing Lu

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引用次数: 0

摘要

在本文中，我们构建了一个2.4GHz和3.5 GHz的协同后向散射通信系统。介绍了基于软件定义无线电(SDR)技术的后向散射调制器、单片机(MCU)和接收机系统的测试平台。为了实现以上频段的通信，首先设计了全向双频天线。然后设计了后向散射调制电路，并采用带两个PIN二极管的双工器对两个频段进行控制。在接收端设计了载波收发解调系统。本文阐述了在频段内同时实现移频键控(FSK)和移相键控(PSK)，并分别接收两种信号的设计策略。它既能满足不同节点间的通信需求，又能实现速率叠加，提高传输效率。

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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Dual-band cooperative backscatter communication system

In this paper, we build a cooperative backscatter communication system in 2.4GHz and 3.5 GHz. A test platform including backscattering modulator, Microcontroller Unit (MCU) and receiver system based on Software Defined Radio (SDR) technology is described. In order to realize the communication in the above bands, an omnidirectional dual-band antenna is designed first. Then a backscattering modulation circuit is designed, and a diplexer with two PIN diodes are used to control the two frequency bands. The carrier transmitting and receiving demodulation system is designed at the receiving end. This paper explains the design strategy of realizing frequency- shift keying (FSK) and phase-shift keying (PSK) in the bands simultaneously, and receiving the two signals separately. It can not only meet the communication requirements for different nodes, but also realize rate superposition to improve transmission efficiency.

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2022 International Conference on Microwave and Millimeter Wave Technology (ICMMT)

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