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NYQUIST: 作品数：120被引量：133H指数：5; 导出分析报告; 相关领域：电子电信更多>>; 相关作者：方斌沈越泓王成孟晨陈鹏更多>>; 相关机构：北京邮电大学南京理工大学电子科技大学解放军理工大学更多>>; 相关期刊：更多>>; 相关基金：国家自然科学基金国家高技术研究发展计划国家重点实验室开放基金国家重点基础研究发展计划更多>>

A Multi-Task Learning Framework for Joint Sub-Nyquist Wideband Spectrum Sensing and Modulation Recognition: 《China Communications》2025年第1期128-138,共11页Dong Xin Stefanos Bakirtzis Zhang Jiliang Zhang Jie; The utilization of millimeter-wave frequencies and cognitive radio(CR)are promising ways to increase the spectral efficiency of wireless communication systems.However,conventional CR spectrum sensing techniques entail...; 关键词：automated modulation classification cognitive radio convolutional neural networks deep learning spectrum sensing sub-Nyquist sampling

Joint Optimization of Precoding and Constellation Shaping for Faster-than-Nyquist Signaling: 《China Communications》2024年第11期141-149,共9页Kang Weimin; supported by Fundamental Research Program of Shanxi Province(202203021212159)。; Faster-than-Nyquist(FTN)signaling is a potential scheme for the sixth generation(6G)communication system to improve the spectral efficiency(SE).In this paper,we propose a joint optimization algorithm of precoding and ...; 关键词：constellation shaping faster-than-Nyquist PRECODING spectral efficiency

无线电监测接收机自组网通信工作的杂散问题分析与解决: 《中国无线电》2024年第9期66-68,共3页蔡元存张超江德智; 无线电监测接收机主要用于对电磁信号的接收和采集,及时将获取的数据或结果送回远程终端。无线电监测接收机通常采用有线网络进行数据传输,在不具备有线网络条件下,则采用自组网等无线通信技术进行数据传输。本文介绍了无线电监测接收...; 关键词：高速采样 ADC Nyquist区自干扰问题

Sub-Nyquist sampling-based wideband spectrum sensing:a compressed power spectrum estimation approach: 《Frontiers of Computer Science》2024年第2期139-145,共7页Jilin WANG Yinsen HUANG Bin WANG; In this paper,we introduce a sub-Nyquist sampling-based receiver architecture and method for wideband spectrum sensing.Instead of recovering the original wideband analog signal,the proposed method aims to directly rec...; 关键词：wideband spectrum sensing sub-Nyquist multicoset sampling FCPSE

Sub-Nyquist radar receiver based on photonics-assisted compressed sensing and cascaded dictionaries被引量：1: 《Chinese Optics Letters》2024年第1期159-163,共5页刘诗扬陈阳; supported by the National Natural Science Foundation of China(NSFC)(No.61971193);the Natural Science Foundation of Shanghai(No.20ZR1416100);the Songshan Laboratory Pre-research Project(No.YYJC072022006);the Shanghai Aerospace Science and Technology Innovation Fund(No.SAST2022074);the Science and Technology Commission of Shanghai Municipality(No.22DZ2229004)。; A sub-Nyquist radar receiver based on photonics-assisted compressed sensing is proposed.Cascaded dictionaries are applied to extract the delay and the Doppler frequency of the echo signals,which do not need to accumul...; 关键词：compressed sensing dictionary learning sub-Nyquist radar microwave photonics Doppler frequency

Wideband spectrum sensing using step-sampling based on the multipath nyquist folding receiver: 《Defence Technology（防务技术）》2024年第1期523-536,共14页Kai-lun Tian Kai-li Jiang Sen Cao Jian Gao Ying Xiong Bin Tang Xu-ying Zhang Yan-fei Li; supported by the Key Projects of the 2022 National Defense Science and Technology Foundation Strengthening Plan 173 (Grant No.2022-173ZD-010);the Equipment PreResearch Foundation of The State Key Laboratory (Grant No.6142101200204)。; Wideband spectrum sensing with a high-speed analog-digital converter(ADC) presents a challenge for practical systems.The Nyquist folding receiver(NYFR) is a promising scheme for achieving cost-effective real-time spec...; 关键词：Wideband spectrum sensing Sub-Nyquist sampling Step-sampling Nyquist folding receiver(NYFR) Multisignal processing

Numerical evaluation on sub-Nyquist spectrum reconstruction methods: 《Frontiers of Computer Science》2023年第6期199-201,共3页Zihang SONG Han ZHANG Sean FULLER Andrew LAMBERT Zhinong YING Petri MAHONEN Yonina ELDAR Shuguang CUI Mark DPLUMBLEY Clive PARINI Arumugam NALLANATHAN Yue GAO; 1 Introduction As wireless technology continues to expand,there is a growing concern about the efficient use of spectrum resources.Even though a significant portion of the spectrum is allocated to licensed primary use...; 关键词：SPECTRUM CONTINUE NYQUIST

A Model-Driven Approach to Enhance Faster-than-Nyquist Signaling over Nonlinear Channels: 《Journal of Communications and Information Networks》2023年第4期341-348,共8页Tongzhou Yu Baoming Bai Ruimin Yuan Chao Chen; supported in part by the National Key R&D Program of China under Grant 2021YFB2900501;and in part by the National Natural Science Foundation of China under Grant 62171356.; In order to increase the capacity of future satellite communication systems,faster-than-Nyquist(FTN)signaling is increasingly consideredI..Existing methods for compensating for the high power amplifier(HPA)nonlinearit...; 关键词：Faster-than-Nyquist signaling high power amplifier nonlinear compensation complex-valued neural network

基于导纳矩阵与圆盘估计的多节点直流配电系统谐振稳定性分析方法被引量：2: 《中国电机工程学报》2023年第16期6242-6254,共13页赵文梦陈鹏伟姜文伟陈新李欢; 直流输电技术国家重点实验室开放基金项目(SKLHVDC-2021-KF-10)。; 为充分利用多节点直流配电系统节点导纳矩阵建模的便利性,同时实现谐振稳定性的高效判定,该文在接口变换器直流阻抗降阶建模的前提下,结合节点导纳矩阵对广义奈奎斯特(Nyquist)判据进行拓展,并应用Ward等值,给出采用特征值谐振频率与阻...; 关键词：直流配电系统节点导纳矩阵广义奈奎斯特(Nyquist)判据阻尼因子圆盘估计

基于傅里叶系数实部的脉冲流信号欠Nyquist采样方法被引量：4: 《电子与信息学报》2023年第6期2153-2161,共9页云双星徐红伟付宁乔立岩; 国家自然科学基金(62071149,61671177);鸿鹊创新中心开放基金(HQ202103003);中央高校基本科研业务费专项资金。; 有限新息率(FRI)采样理论可以远低于信号Nyquist频率的采样速率实现对脉冲流信号的欠采样。经典的FRI重构算法大多基于傅里叶系数进行运算,其中存在大量的对复数矩阵的奇异值分解,降低了算法的执行效率。针对该问题,该文提出基于傅里叶...; 关键词：欠Nyquist采样有限新息率脉冲流信号离散余弦变换

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