基于外差技术的动态雷达干扰自解耦Rydberg通信天线

IF 3.6 2区物理与天体物理 Q2 PHYSICS, APPLIED

Applied Physics Letters Pub Date : 2025-04-02 DOI:10.1063/5.0257399

Ge Gao, Minze Chen, Haonan Feng, Zhiao Zhu, Aobei Chen, Zhonghuai Wu, Tianqi Mao, WeiDong Dai, Peng Peng, Dezhi Zheng

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引用次数: 0

摘要

Rydberg原子通信天线表现出优于传统天线的特殊性能。外差技术的应用进一步奠定了高精度数字通信的基础。然而，现有的信号解算器限制了其在综合雷达通信系统中的应用。为了解决这个问题，我们提出了雷达干扰下Rydberg外差通信符号与接收机信号之间的多参数映射模型。在此模型的基础上，采用已建立的Rydberg外差小样本数据集更新求解器参数，引入了一种基于SIR的自适应信号干扰比（SIR）混合（ASIRH）求解器，用于大功率范围雷达干扰下的自适应解耦。我们采用Cs Rydberg原子接收机来实现单通道四态移频键控数字通信协议。在−20 ~ 28 dB的SIR范围内验证了ASIRH模型的求解能力，在数据速率为80 kSym/s、载波幅度为50μV/cm的通信条件下，ASIRH模型的符号错误率小于3.97%。该工作为里德伯通信在时变雷达干扰的复杂电磁环境中的应用铺平了道路。

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Rydberg communication antennas with self-decoupling for dynamic radar interference based on heterodyne technology

The Rydberg atomic communication antenna exhibits exceptional properties superior to traditional antennas. The use of heterodyne technology further establishes a foundation for high-precision digital communication. However, current signal solvers limit its application in integrated radar-communication systems. To address this, we propose a multi-parameter mapping model between Rydberg heterodyne communication symbols and the receiver signals under radar interference. Based on this model, we introduce an adaptive signal-to-interference ratio (SIR)-based hybrid (ASIRH) solver for adaptive decoupling in the presence of wide power range radar interference, using the established Rydberg heterodyne small-sample dataset to update the solver parameters. We employ a Cs Rydberg atomic receiver to implement a single-channel 4-state frequency-shift keying digital communication protocol. The ASIRH model's solving capability is validated within the SIR range of −20 to 28 dB, demonstrating performance with an symbol error rate of less than 3.97% under communication conditions with a data rate of 80 kSym/s and a carrier amplitude of 50μV/cm. This work paves the way for the application of Rydberg communication in complex electromagnetic environments with time-varying radar interference.

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来源期刊

Applied Physics Letters 物理-物理：应用

CiteScore

6.40

自引率

10.00%

发文量

1821

审稿时长

1.6 months

期刊介绍： Applied Physics Letters (APL) features concise, up-to-date reports on significant new findings in applied physics. Emphasizing rapid dissemination of key data and new physical insights, APL offers prompt publication of new experimental and theoretical papers reporting applications of physics phenomena to all branches of science, engineering, and modern technology. In addition to regular articles, the journal also publishes invited Fast Track, Perspectives, and in-depth Editorials which report on cutting-edge areas in applied physics. APL Perspectives are forward-looking invited letters which highlight recent developments or discoveries. Emphasis is placed on very recent developments, potentially disruptive technologies, open questions and possible solutions. They also include a mini-roadmap detailing where the community should direct efforts in order for the phenomena to be viable for application and the challenges associated with meeting that performance threshold. Perspectives are characterized by personal viewpoints and opinions of recognized experts in the field. Fast Track articles are invited original research articles that report results that are particularly novel and important or provide a significant advancement in an emerging field. Because of the urgency and scientific importance of the work, the peer review process is accelerated. If, during the review process, it becomes apparent that the paper does not meet the Fast Track criterion, it is returned to a normal track.