Works matching Frequency

Results: 5000

一种基于时频分析的多跳频信号盲源分离算法.

Published in:

Ordnance Industry Automation, 2022, v. 41, n. 5, p. 15, doi. 10.7690/bgzdh.2022.05.004

By:

侯范;
姚志成;
杨剑;
王海洋;
王自维

Publication type:

Article

频率捷变波形联合时频滤波器抗间歇采样转发干扰.

Published in:

Systems Engineering & Electronics, 2023, v. 45, n. 12, p. 3819, doi. 10.12305/j.issn.1001-506X.2023.12.11

By:

杜思予;
刘智星;
吴耀君;
沙明辉;
全英汇

Publication type:

Article

AL-OFDM和SM-OFDM空频分组码信号盲识别方法.

Published in:

Systems Engineering & Electronics, 2021, v. 43, n. 1, p. 19, doi. 10.3969/j.issn.1001-506X.2021.01.03

By:

凌青;
闫文君;
张立民;
于柯远

Publication type:

Article

实部虚部索引广义频分复用多载波调制技术.

Published in:

Systems Engineering & Electronics, 2019, v. 41, n. 4, p. 898, doi. 10.3969/j.issn.1001-506X.2019.04.28

By:

付晓梅;
管丽颖;
苏毅珊

Publication type:

Article

A fast automatic frequency calibration technique for a 2-6 GHz frequency synthesizer.

Published in:

International Journal of Circuit Theory & Applications, 2014, v. 42, n. 3, p. 309, doi. 10.1002/cta.1853

By:

Jeong, Chan‐Young;
Choi, Dong‐Ho;
Yoo, Changsik

Publication type:

Article

DUAL BAND FILTER DESIGN USING REAL FREQUENCY TECHNIQUE AND FREQUENCY TRANSFORMATION.

Published in:

Istanbul University - Journal of Electrical & Electronics Engineering, 2017, v. 17, n. 2, p. 3343

By:

YILDIZ, Serkan;
AKSEN, Ahmet;
YARMAN, Sıddık B.

Publication type:

Article

Active frequency selective surface-based 360° beam steering in two switchable frequency bands independently.

Published in:

Journal of Electromagnetic Waves & Applications, 2023, v. 37, n. 7-9, p. 853, doi. 10.1080/09205071.2023.2214321

By:

Bhattacharjee, Ankit;
Dwari, Santanu

Publication type:

Article

Recommendations and publication guidelines for studies using frequency domain and time‐frequency domain analyses of neural time series.

Published in:

Psychophysiology, 2022, v. 59, n. 5, p. 1, doi. 10.1111/psyp.14052

By:

Keil, Andreas;
Bernat, Edward M.;
Cohen, Michael X.;
Ding, Mingzhou;
Fabiani, Monica;
Gratton, Gabriele;
Kappenman, Emily S.;
Maris, Eric;
Mathewson, Kyle E.;
Ward, Richard T.;
Weisz, Nathan

Publication type:

Article

Instantaneous Frequency Estimation of Nonlinear Frequency-Modulated Signals Under Strong Noise Environment.

Published in:

Circuits, Systems & Signal Processing, 2016, v. 35, n. 10, p. 3734, doi. 10.1007/s00034-015-0230-2

By:

Jiang, Li;
Li, Lin;
Zhao, Guoqing;
Pan, Yang

Publication type:

Article

Network Design for Multiple Frequency Impedance Matching by the Frequency Transformation Technique.

Published in:

IETE Journal of Research, 2013, v. 59, n. 6, p. 698, doi. 10.4103/0377-2063.126966

By:

Dutta Roy, Suhash Chandra

Publication type:

Article

Estimating a Spectral Correlation Function under the Conditions of Imperfect Relation between Signal Frequencies and a Sampling Frequency.

Published in:

Radioengineering, 2010, v. 19, n. 1, p. 1

By:

Šebesta, Vladimír

Publication type:

Article

PHASE FREQUENCY INTERPRETATION OF THE COINCIDENCE METHOD FOR FREQUENCY TO CODE CONVERSION.

Published in:

Radio Electronics, Computer Science, Control, 2023, n. 2, p. 6, doi. 10.15588/1607-3274-2023-2-1

By:

V. S., Petrushak

Publication type:

Article

A Study on Frequency Stability and Primary Frequency Response of the Korean Electric Power System Considering the High Penetration of Wind Power †.

Published in:

Energies (19961073), 2022, v. 15, n. 5, p. 1784, doi. 10.3390/en15051784

By:

Lim, SungHoon;
Kim, Taewan;
Yoon, Kipo;
Choi, DongHee;
Park, Jung-Wook

Publication type:

Article

一种低频段小型化带通频率选择表面天线罩设计.

Published in:

Telecommunication Engineering, 2022, v. 62, n. 10, p. 1526, doi. 10.3969/j.issn.1001-893x.2022.10.022

By:

王义富;
陈毅乔;
毛玮

Publication type:

Article

一种基于K-means 聚类的跳频信号快速检测方法.

Published in:

Telecommunication Engineering, 2022, v. 62, n. 2, p. 199, doi. 10.3969/j.issn.1001-893x.2022.02.009

By:

侯范;
姚志成;
杨剑;
李昱婷;
王自维

Publication type:

Article

METHOD FOR OPTIMIZATION OF SWITCHING FREQUENCY IN FREQUENCY CONVERTERS.

Published in:

Scientific Bulletin of National Mining University, 2021, n. 1, p. 103, doi. 10.33271/nvngu/2021-1/103

By:

Nerubatskyi, V. P.;
Plakhtii, O. A.;
Tugay, D. V.;
Hordiienko, D. A.

Publication type:

Article

The Frequency Spectrum and Time Frequency Analysis of Different Violins Classification as Tools for Selecting a Good-Sounding Violin.

Published in:

Wacana Seni Journal of Arts Discourse, 2021, v. 20, p. 27, doi. 10.21315/ws2021.20.3

By:

Hamdan, Sinin;
Musib, Ahmad Faudzi;
Sawawi, Marini;
Othman, Saiful Hairi

Publication type:

Article

An effective frequency-domain feature of atrial fibrillation based on time-frequency analysis.

Published in:

2020

By:

Hu, Yusong;
Zhao, Yantao;
Liu, Jihong;
Pang, Jin;
Zhang, Chen;
Li, Peizhe

Publication type:

journal article

Frequency modulation technology for power systems incorporating wind power, energy storage, and flexible frequency modulation.

Published in:

Sustainable Energy Research, 2025, v. 12, n. 1, p. 1, doi. 10.1186/s40807-025-00153-3

By:

Li, Chunlin

Publication type:

Article

Generation of optical frequency combs based on time‐to‐frequency conversion.

Published in:

IET Optoelectronics (Wiley-Blackwell), 2014, v. 8, n. 3, p. 149, doi. 10.1049/iet-opt.2013.0095

By:

Yan, Juanjuan;
Peng, Yichao;
Yao, Xiayuan;
Bai, Ming;
Zheng, Zheng

Publication type:

Article

基于自适应频率切片小波变换的滚动轴承故障诊断.

Published in:

Transactions of the Chinese Society of Agricultural Engineering, 2019, v. 35, n. 10, p. 34, doi. 10.11975/j.issn.1002-6819.2019.10.005

By:

马朝永;
盛志鹏;
胥永刚;
张坤

Publication type:

Article

Orthogonal frequency division multiplexing linear frequency modulation signal design with optimised pulse compression property of spatial synthesised signals.

Published in:

IET Radar, Sonar & Navigation (Wiley-Blackwell), 2016, v. 10, n. 7, p. 1319, doi. 10.1049/iet-rsn.2015.0642

By:

Li, Hui;
Zhao, Yongbo;
Cheng, Zengfei;
Feng, Da‐Zheng

Publication type:

Article

Real-time vehicle-to-grid control for frequency regulation with high frequency regulating signal.

Published in:

Protection & Control of Modern Power Systems, 2018, v. 3, n. 1, p. N.PAG, doi. 10.1186/s41601-018-0085-1

By:

Liu, H.;
Huang, K.;
Yang, Y.;
Wei, H.;
Ma, S.

Publication type:

Article

Multi-component instantaneous frequency estimation using locally adaptive directional time frequency distributions.

Published in:

International Journal of Adaptive Control & Signal Processing, 2016, v. 30, n. 3, p. 429, doi. 10.1002/acs.2583

By:

Khan, Nabeel Ali;
Boashash, Boualem

Publication type:

Article

High-Concentration Time-Frequency Representation and Instantaneous Frequency Estimation of Frequency-Crossing Signals.

Published in:

Sensors (14248220), 2025, v. 25, n. 7, p. 2030, doi. 10.3390/s25072030

By:

Li, Hui;
Zhu, Xiangxiang;
Wang, Yingfei;
Cai, Xinpeng;
Zhang, Zhuosheng

Publication type:

Article

Single-Carrier Single-Block Differential Space–Frequency Coding Transmission Over the Frequency-Selective Fading Channels.

Published in:

Wireless Personal Communications, 2009, v. 49, n. 1, p. 133, doi. 10.1007/s11277-008-9562-6

By:

Zhu, Jiangzhang;
Jin, Tao;
Du, Qingsong

Publication type:

Article

Transmission of data with orthogonal frequency division multiplexing technique for communication networks using GHz frequency band soliton carrier.

Published in:

IET Communications (Wiley-Blackwell), 2014, v. 8, n. 7, p. 1364, doi. 10.1049/iet-com.2013.0077

By:

Amiri, I.S.;
Ebrahimi, M.;
Yazdavar, A.H.;
Ghorbani, S.;
Alavi, S.E.;
Idrus, S.M.;
Ali, J.

Publication type:

Article

Cross‐relation‐based frequency‐domain blind channel estimation with multiple antennas in orthogonal frequency division multiplexing systems.

Published in:

IET Communications (Wiley-Blackwell), 2013, v. 7, n. 17, p. 1753, doi. 10.1049/iet-com.2012.0518

By:

Park, Jaehyun;
Chun, Joohwan;
Jeong, Byung Jang

Publication type:

Article

基于捷变频联合数学形态学的干扰抑制算法.

Published in:

Systems Engineering & Electronics, 2020, v. 42, n. 7, p. 1491, doi. 10.3969/j.issn.1001-506X.2020.07.09

By:

董淑仙;
全英汇;
陈侠达;
高霞;
李亚超;
邢孟道

Publication type:

Article

A spurious frequencies suppression method for optical frequency comb based microwave photonic filter.

Published in:

Laser & Photonics Reviews, 2013, v. 7, n. 4, p. L34, doi. 10.1002/lpor.201300005

By:

Liao, Jinxin;
Xue, Xiaoxiao;
Wen, He;
Li, Shangyuan;
Zheng, Xiaoping;
Zhang, Hanyi;
Zhou, Bingkun

Publication type:

Article

주파수 잠금회로(FLL)를 이용한 주파수 합성기.

Published in:

Journal of Korean Institute of Electromagnetic Engineering & Science / Han-Guk Jeonjapa Hakoe Nonmunji, 2020, v. 31, n. 6, p. 517, doi. 10.5515/KJKIEES.2020.31.6.517

By:

심호석;
노진성;
문서영;
염경환

Publication type:

Article

Borneo Lute 'Sape': The Frequency Spectrum and Time Frequency Analysis (TFA).

Published in:

BioResources, 2023, v. 18, n. 4, p. 6761, doi. 10.15376/biores.18.4.6761-6771

By:

Hamdan, Sinin;
Mohamad Said, Khairul Anwar;
Rahman, Md Rezaur;
Sawawi, Marini;
Sinin, Aaliyawani Ezzerin

Publication type:

Article

ANALYTICAL MODEL OF HIGH-FREQUENCY NOISE OF SCHOTTKY-BARRIER FREQUENCY MULTIPLIERS.

Published in:

Fluctuation & Noise Letters, 2011, v. 10, n. 1, p. 121, doi. 10.1142/S0219477511000442

By:

MAHI, F. Z.;
HELMAOUI, A. R.;
VARANI, L.;
PALERMO, C.;
SHIKTOROV, P.;
STARIKOV, E.;
GRUŽINSKIS, V.;
Macucci, Massimo

Publication type:

Article

A Hybrid Anti-Collision Protocol Based on Frequency Division Multiple Access (FDMA) and Time Division Multiple Access (TDMA) for Radio Frequency Identification (RFID) Readers.

Published in:

Network (2673-8732), 2024, v. 4, n. 2, p. 217, doi. 10.3390/network4020011

By:

Ouadou, Mourad;
Mafamane, Rachid;
Minaoui, Khalid

Publication type:

Article

Flexural Vibration Magnetoelectric Antenna for Medium Frequency and High Frequency.

Published in:

Integrated Ferroelectrics, 2023, v. 231, n. 1, p. 57, doi. 10.1080/10584587.2022.2143200

By:

Liu, Yizhang;
Zeng, Zhongming;
Lin, Wenkui;
Yun, Xiaofan;
Wu, Dongmin;
Zha, Qiang;
Zhang, Baoshun

Publication type:

Article

用于无损离子操纵结构的双极性射频电源的研制.

Published in:

Journal of Chinese Mass Spectrometry Society, 2025, v. 46, n. 1, p. 97, doi. 10.7538/zpxb.2024.0047

By:

刘青;
许润泽;
张允晶;
李灵锋;
李鹏

Publication type:

Article

低频率射频辉光放电的研究.

Published in:

Journal of Chinese Mass Spectrometry Society, 2021, v. 42, n. 6, p. 1156, doi. 10.7538/zpxb.2020.0095

By:

郭长娟;
胡帆;
胡春燕;
朱辉

Publication type:

Article

Theoretical and Experimental Analysis of Optical Frequency Combs Synchronized to a Microwave Reference Achieving 10 −19 -Level Additional Stability.

Published in:

Photonics, 2025, v. 12, n. 3, p. 195, doi. 10.3390/photonics12030195

By:

Chen, Xin;
Li, Mingkun;
Rao, Bingjie;
Yang, Xiguang;
Hu, Zhenyuan;
Dong, Ruifang;
Zhang, Shougang;
Zhang, Pan

Publication type:

Article

Research on Optical Mutual Injection to Generate Tunable Microwave Frequency Combs.

Published in:

Photonics, 2024, v. 11, n. 3, p. 195, doi. 10.3390/photonics11030195

By:

Wu, Bin;
Zhao, Qingchun

Publication type:

Article

Remote Residual Instability Evaluation of Comb-Based Precise Frequency Transmission for Optical Clock.

Published in:

Photonics, 2023, v. 10, n. 11, p. 1188, doi. 10.3390/photonics10111188

By:

Li, Zhaolong;
Gui, Sibo;
Wu, Haitao;
Guo, Ziyu;
Zhao, Jianye

Publication type:

Article

Dynamics of the Frequency Shifts in Semiconductor Lasers under the Injection of a Frequency Comb.

Published in:

Photonics, 2022, v. 9, n. 12, p. 886, doi. 10.3390/photonics9120886

By:

Al-Hosiny, Najm M.

Publication type:

Article

Proposed Scheme for Ultra-Flat Optical Frequency Comb Generation Based on Dual-Drive Mach–Zehnder Modulators and Bidirectional Recirculating Frequency Shifting in Single Loop.

Published in:

Photonics, 2022, v. 9, n. 8, p. 514, doi. 10.3390/photonics9080514

By:

Liu, Yu;
Wu, Shibao

Publication type:

Article

组合 GPS/GLONASS 三频观测值的非差非组合 PPP 模糊度快速固定.

Published in:

Geomatics & Information Science of Wuhan University, 2024, v. 49, n. 10, p. 1900, doi. 10.13203/j.whugis20220315

By:

章繁;
柴洪洲;
王敏;
肖国锐;
张乾坤;
杜祯强

Publication type:

Article

北斗高精度时频服务理论方法与应用.

Published in:

Geomatics & Information Science of Wuhan University, 2023, v. 48, n. 7, p. 1010, doi. 10.13203/j.whugis20230205

By:

施闯;
郑福;
楼益栋;
王玉琢;
张爱敏;
张首刚;
张东;
宋伟;
王梦;
林元挥;
王浩源

Publication type:

Article

Photonics generation of frequency-shift keying radio-frequency signal using nonlinear polarization rotation in a highly nonlinear fiber.

Published in:

Optical Engineering, 2016, v. 55, n. 10, p. 106118-1, doi. 10.1117/1.OE.55.10.106118

By:

Xin Wang;
Wei Li;
Ming Li;
Ning Hua Zhu

Publication type:

Article

Coherent photonic radio frequency channelization based on dual coherent optical frequency combs and stimulated Brillouin scattering.

Published in:

Optical Engineering, 2016, v. 55, n. 4, p. 046106-1, doi. 10.1117/1.OE.55.4.046106

By:

Weiyuan Xu;
Dan Zhu;
Shilong Pan

Publication type:

Article

Performance analysis on quality of optical frequency comb generated by the recirculating frequency shifter based on linear IQ modulator.

Published in:

Optical Engineering, 2015, v. 54, n. 11, p. 1, doi. 10.1117/1.OE.54.11.116106

By:

Lu Sun;
Jianping Li;
Jiachuan Lin;
Lixia Xi;
Xianfeng Tang;
Xiaoguang Zhang

Publication type:

Article

Optical beat-note frequency stabilization between two lasers using a radio frequency interferometer in the gigahertz frequency band.

Published in:

Optical Engineering, 2014, v. 53, n. 12, p. 1, doi. 10.1117/1.OE.53.12.124109

By:

Tomoyuki Uehara;
Kenichiro Tsuji;
Kohei Hagiwara;
Noriaki Onodera

Publication type:

Article

High-quality frequency-locked optical frequency comb source for terabits optical communication system.

Published in:

Optical Engineering, 2014, v. 53, n. 12, p. 1, doi. 10.1117/1.OE.53.12.122608

By:

Jiachuan Lin;
Lixia Xi;
Jianping Li;
Jianrui Li;
Xianfeng Tang;
Lu Sun;
Xiaoguang Zhang

Publication type:

Article

Carrier-envelope offset frequency noise analysis in Ti:sapphire frequency combs.

Published in:

Optical Engineering, 2014, v. 53, n. 12, p. 1, doi. 10.1117/1.OE.53.12.122603

By:

Sutyrin, Denis V.;
Poli, Nicola;
Beverini, Nicolò;
Tino, Guglielmo M.

Publication type:

Article