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Cloud-edge-device fusion architecture oriented to spectrum cognition and decision in low altitude intelligence network [PDF]
, 2023 A new architecture for the typical application scenario of low altitude intelligence network spectrum cognition and decision was introduced.Firstly, the challenges of spectrum security management and efficient sharing in low altitude intelligence network
Bo ZHOU +7 more
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Dizhen xuebao, 2021 利用天津市徐庄子地震台的电磁观测数据，针对台站周边观测区域内近年来出现的风电和光伏发电设施，通过野外试验测量，从多个角度深入剖析了不同观测环境中电磁观测数据在时间和空间上的变化形态，分别总结了风力发电、光伏发电的建设和运行状态对电磁观测环境干扰的影响特征。结果显示：风力发电机组对电磁观测环境的影响明显小于光伏发电设备，可视为一个干扰点，需规范其与观测设施的距离；若要确保光伏发电设备不影响电磁观测，需要将每个系统视为一个整体，并使二者保持足够大的距离。
Yong Ma, Ning Li, Xuegong Xu, Jinmeng Bi
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Multi-sensing node convolution fusion identity recognition algorithm for radio digital twin [PDF]
, 2023 Electromagnetic space is an important link to empower and coordinate sea, land, air, space and network.Electromagnetic target recognition provides important radio target identity information for the twin construction of electromagnetic space, so that it ...
Daoxing GUO +5 more
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Research on ionospheric parameters prediction based on deep learning [PDF]
, 2021 For ionospheric parameter prediction, the short-term and daily mean value prediction of ionospheric parameters was established by long short-term memory (LSTM) predictive neural network modeling.Two methods of point-by-point prediction and sequence ...
Rongqing ZHANG +3 more
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Research progress on electromagnetic spectrum multidimensional situation compressed mapping technology [PDF]
, 2023 In the increasingly complex electromagnetic spectrum environment, accurately obtaining comprehensive spectrum situation is a crucial prerequisite for making precise spectrum decisions.First, the spectrum mapping was introduced and compared with spectrum ...
Bo ZHOU +4 more
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Review of array antenna and its application based on electromagnetic surface [PDF]
, 2022 Array antennas based on electromagnetic surface is a frontier in the field of electromagnetic, based on this, the development, research status and applications of electromagnetic surface array antennas were summarized.First, the early development of ...
Changhao LIU +8 more
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Fast blind detection of short-wave frequency hopping signal based on MeanShift [PDF]
, 2022 In the complex short-wave channel environment, combined with time-frequency analysis technology, a fast blind detection algorithm of the connected domain labeled frequency hopping signals based on MeanShift algorithm was proposed to reduce the influence ...
Jing LIANG +6 more
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Blind source separation communication anti-jamming technology and practice [PDF]
, 2023 Aiming at the threat of broad frequency band suppressing jamming and the inherent contradiction between spectrum resources and communication anti-jamming ability, a method was proposed to add the statistics domain dimension on the basis of spread ...
Fuqiang YAO +3 more
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Spectrum knowledge graph: an intelligent engine facing future spectrum management [PDF]
, 2021 To solve the issues of simple representations on spectrum situation, much dependence on artificial experience in manual management and low efficiency and accuracy in the current spectrum management, meeting the requirements of automation, precision and ...
Guoru DING +4 more
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Gaoya dianqi, 2021 对生物电磁效应相关实验工作的回顾表明,当前实验装置主要为窄频电磁辐射装置和脉冲电磁辐射装置,通用性不足。随着无线系统的发展,电磁环境频谱将横跨数千赫兹到毫米波,且为多频段复合电磁场,其中包含超宽带矢量调制的电磁场,有一些具有脉冲时隙特征,显然生物电磁效应实验需要模拟、复现这样的电磁环境,而传统的电磁辐射实验装置具有显著的局限性。为此提出基于超宽带同轴锥腔体的新实验装置方案,理论和实验测量都表明,新实验装置单一腔体就可以具备直流至40 GHz/67 GHz毫米波的超宽带电磁场生成能力 ...
周峰 +4 more
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