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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

Explicit multi-frequency symmetric extended RKN integrators for solving multi-frequency and multidimensional oscillatory reversible systems.

Published in:

Calcolo, 2015, v. 52, n. 2, p. 207, doi. 10.1007/s10092-014-0114-z

By:

Wang, Bin;
Wu, Xinyuan

Publication type:

Article

Application of bivariate frequency analysis to the derivation of rainfall–frequency curves.

Published in:

Stochastic Environmental Research & Risk Assessment, 2010, v. 24, n. 3, p. 389, doi. 10.1007/s00477-009-0328-9

By:

Chang Hwan Lee;
Tae-Woong Kim;
Gunhui Chung;
Minha Choi;
Chulsang Yoo

Publication type:

Article

Application of Digitised Frequency Modulated Thermal Wave Imaging for Testing and Evaluation of Rebar Corrosion in Concrete Structures: A Numerical Study.

Published in:

Russian Journal of Nondestructive Testing, 2024, v. 60, n. 5, p. 562, doi. 10.1134/S1061830924601429

By:

Sharma, Anshul;
Arora, Vanita;
Mulaveesala, Ravibabu

Publication type:

Article

Measurement of the Resonance Frequency by the Amplitude and Phase Methods with the Use of Digital Frequency Scanning.

Published in:

Measurement Techniques, 2021, v. 64, n. 6, p. 488, doi. 10.1007/s11018-021-01958-6

By:

Fateev, V. Ya.

Publication type:

Article

The Systematic Error of Measurement of the Exponent of the Frequency Dependence of the Spectrum of Low-Frequency Noise.

Published in:

Measurement Techniques, 2016, v. 58, n. 10, p. 1160, doi. 10.1007/s11018-015-0859-z

By:

Sergeev, V.;
Rezchikov, S.

Publication type:

Article

Detection and Measurement of Frequency Jumps of a Quantum Clock Signal Using Radio Space Navigation Systems.

Published in:

Measurement Techniques, 2015, v. 58, n. 4, p. 408, doi. 10.1007/s11018-015-0726-y

By:

Pashev, G.

Publication type:

Article

Nonlinear Method for Measuring the Frequency Response of an Acoustic Wave Receiver.

Published in:

Measurement Techniques, 2014, v. 57, n. 6, p. 707, doi. 10.1007/s11018-014-0523-z

By:

Gavrilov, A.

Publication type:

Article

A Physical Model of the Systematic Variation of the Frequency of the Output Signal of Hydrogen Frequency and Time Standards.

Published in:

Measurement Techniques, 2014, v. 57, n. 2, p. 160, doi. 10.1007/s11018-014-0423-2

By:

Vasil'ev, V.

Publication type:

Article

Maintenance of the unit of frequency and the time scale by high-stability oscillators synchronized with radio signals from space navigation systems.

Published in:

Measurement Techniques, 2013, v. 55, n. 12, p. 1379, doi. 10.1007/s11018-013-0137-x

By:

Pashev, G.

Publication type:

Article

The error in determining the linear frequency drift coefficient and constant frequency deviation of highly stable oscillators by the radio signals of space navigation systems.

Published in:

Measurement Techniques, 2011, v. 54, n. 5, p. 536, doi. 10.1007/s11018-011-9762-4

By:

Pashev, G.

Publication type:

Article

The effect of the passband of frequency comparators on the error of measurements of the frequency instability of frequency and time standards.

Published in:

Measurement Techniques, 2009, v. 52, n. 11, p. 1189, doi. 10.1007/s11018-010-9418-9

By:

Driga, I. A.

Publication type:

Article

基于时频分析的跳频信号参数估计研究.

Published in:

Journal of Ordnance Equipment Engineering, 2023, v. 44, n. 3, p. 232, doi. 10.11809/bqzbgcxb2023.03.033

By:

张玮;
王平

Publication type:

Article

Radio Frequency Interference Measurements to Determine the New Frequency Sub-Bands of the Coaxial L-P Cryogenic Receiver of the Sardinia Radio Telescope.

Published in:

Universe (2218-1997), 2023, v. 9, n. 9, p. 390, doi. 10.3390/universe9090390

By:

Schirru, Luca;
Ladu, Adelaide;
Gaudiomonte, Francesco

Publication type:

Article

Dynamic Resonant Frequency Bands of Suspension System of Vehicles with Varying Speeds Based on Time-Frequency Spectrum.

Published in:

Transactions of Nanjing University of Aeronautics & Astronautics, 2021, v. 38, n. 2, p. 333, doi. 10.16356/j.1005-1120.2021.02.014

By:

ZHANG Buyun;
ZENG Falin;
TAN Chin-An

Publication type:

Article

From Time–Frequency to Vertex–Frequency and Back.

Published in:

Mathematics (2227-7390), 2021, v. 9, n. 12, p. 1407, doi. 10.3390/math9121407

By:

Stanković, Ljubiša;
Lerga, Jonatan;
Mandic, Danilo;
Brajović, Miloš;
Richard, Cédric;
Daković, Miloš

Publication type:

Article

A Frequency-Domain Estimation Scheme for Frequency Offset with Large Range in OFDM Systems.

Published in:

Electronics (2079-9292), 2025, v. 14, n. 5, p. 859, doi. 10.3390/electronics14050859

By:

Wang, Tao;
Kong, Dejin;
Jiang, Hao;
Chen, Hongming

Publication type:

Article

Control Method for Ultra-Low Frequency Oscillation and Frequency Control Performance in Hydro–Wind Power Sending System.

Published in:

Electronics (2079-9292), 2024, v. 13, n. 18, p. 3691, doi. 10.3390/electronics13183691

By:

Wu, Renjie;
Jiang, Qin;
Li, Baohong;
Liu, Tianqi;
Zeng, Xueyang

Publication type:

Article

A Study on the High Reliability Audio Target Frequency Generator for Electronics Industry.

Published in:

Electronics (2079-9292), 2023, v. 12, n. 24, p. 4918, doi. 10.3390/electronics12244918

By:

Park, Changsik;
Han, Euntack;
Kim, Ikjae;
Shin, Dongkyoo

Publication type:

Article