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FOUR-QUADRANT: 作品数：13被引量：18H指数：3; 导出分析报告; 相关领域：电子电信更多>>; 相关作者：王剑更多>>; 相关机构：清华大学更多>>; 相关期刊：《Semiconductor Photonics and Technology》《城市漫步（上海版、英文）》《计算机教育》《World Journal of Gastroenterology》更多>>; 相关基金：国家自然科学基金广东省自然科学基金国家重点基础研究发展计划国家高技术研究发展计划更多>>

Underwater four-quadrant dual-beam circumferential scanning laser fuze using nonlinear adaptive backscatter filter based on pauseable SAF-LMS algorithm被引量：2: 《Defence Technology（防务技术）》2024年第7期1-13,共13页Guangbo Xu Bingting Zha Hailu Yuan Zhen Zheng He Zhang; supported by the 2021 Open Project Fund of Science and Technology on Electromechanical Dynamic Control Laboratory,grant number 212-C-J-F-QT-2022-0020;China Postdoctoral Science Foundation,grant number 2021M701713;Postgraduate Research&Practice Innovation Program of Jiangsu Province,grant number KYCX23_0511;the Jiangsu Funding Program for Excellent Postdoctoral Talent,grant number 20220ZB245。; The phenomenon of a target echo peak overlapping with the backscattered echo peak significantly undermines the detection range and precision of underwater laser fuzes.To overcome this issue,we propose a four-quadrant ...; 关键词：Laser fuze Underwater laser detection Backscatter adaptive filter Spline least mean square algorithm Nonlinear filtering algorithm

Four-quadrant demodulation fiber sensor for wavelength monitoring of a wavelength phase-shifting interferometer: 《Chinese Optics Letters》2022年第8期12-17,共6页Xiaoqin Shan Xingyue Fan Zhigang Han Jin Wang Fengrui Li Rihong Zhu; This work was supported by the Postgraduate Research&Practice Innovation Program of Jiangsu Province(No.KYCX21_0277);the National Natural Science Foundation of China(No.61875087).; Real-time monitoring of wavelength is important for high-speed wavelength phase-shifting interferometry.In this paper,a wavelength sensor based on a polarization-maintaining fiber interferometer with four-quadrant dem...; 关键词：optical testing wavelength phase-shifting interferometer polarization-maintaining fiber interferometer four-quadrant polarization demodulation wavelength sensing

Pseudo-active actuators:A concept analysis被引量：1: 《International Journal of Mechanical System Dynamics》2021年第2期230-247,共18页Xianxu Bai Guannan He; The authors wish to acknowledge the Fundamental Research Funds for the Central Universities(No.JD2019JGPY0018)for the support of this study.; The superior performance of active vibration control systems largely depends on the four-quadrant controllable execution capability in the available force-velocity diagram of active actuators.Although semi-active vibr...; 关键词：FOUR-QUADRANT pseudo-active actuator pseudo-active suspension semi-active actuator TOPOLOGY

Single Fully Differential Second Generation Current Conveyor Based Four-Quadrant Analog Multiplier Design and Its Applications: 《Chinese Journal of Electronics》2020年第5期959-965,共7页ROY Suvajit PAL Radha-Raman; This manuscript presents a new fourquadrant analog multiplier using a recently reported current mode active building block,namely the Fully differential second generation current conveyor(FDCCII).The proposed circuit ...; 关键词：Four-quadrant analog multiplier Fully differential second generation current conveyor(FDCCII) Amplitude modulator SQUARER Frequency doubler.

Four-quadrant Force Control with Minimal Ripple for Linear Switched Reluctance Machines被引量：5: 《CES Transactions on Electrical Machines and Systems》2020年第1期27-34,共8页Xuanrui Huang Zechuan Lin Xi Xiao; This work was supported in part by the National Natural Science Foundation of China under Grant U1806224,61733010;in part by the Guangdong Key Research and Development Program under Grant 2019B090917001.; Linear switch reluctance machine(LSRM)has been tried to act as an alternative generator for direct drive linear wave energy converter(WEC).Many researchers have proposed new topologies of LSRM to improve the power den...; 关键词：Linear switched reluctance machine direct drive wave energy converter force ripple suppression four-quadrant operation.

NOMAD The Four-Quadrant Inebriation Chart Meets Middle Eastern Cuisine: 《城市漫步（上海版、英文）》2019年第9期62-62,共1页Sophie Steiner; With its eclectic mix of venues,Found 158 has always felt like a modern・day World's Fair fishbowl.With eccentric Bedouin and Mongolian-influenced tribal vibes and underrepresented Middle Eastern fare,Nomad fits right ...; 关键词：Eastern MIDDLE INDIAN

Endoscopic identification of endoluminal esophageal landmarks for radial and longitudinal orientation and lesion location被引量：1: 《World Journal of Gastroenterology》2019年第4期498-508,共11页Fabian Emura Rene Gomez-Esquivel Carlos Rodriguez-Reyes Petros Benias Javier Preciado Michael Wallace Luis Giraldo-Cadavid; (in part)a grant in aid from the Emura Foundation for the Promotion of Cancer Research,No.01221; AIM To characterize esophageal endoluminal landmarks to permit radial and longitudinal esophageal orientation and accurate lesion location.METHODS Distance from the incisors and radial orientation were estimated for t...; 关键词：Esophagus Natural landmark RADIAL ORIENTATION Longitudinal ORIENTATION Four-quadrants LEFT main BRONCHUS LEFT atrium

Evaluating students' learning situations using “Four-quadrant law”: 《计算机教育》2018年第12期28-35,共8页Jinze Liu Dongyang Hu Xunhui Zhang Tao Wang Yue Yu Gang Yin; Evaluation is widely acknowledged as a powerful means of improving the quality of education and it is a very important component of the education system. However, the current mainstream evaluation method is based on t...; 关键词：EVALUATION FOUR-QUADRANT LAW CLASSIFICATION

Efficiency Enhancement of Four-Quadrant Permanent Magnet Direct Current Motor Control through Combination of Power Electronics Switches: 《Journal of Energy and Power Engineering》2011年第8期759-765,共7页A. Marinov V. Valchev; This paper presents two four-quadrant topologies for Permanent Magnet Direct Current （PMDC） motor drives, built using combination of power electronics switches. The issue is the increased efficiency of the topology ...; 关键词：DC machine efficiency IGBT MOSFET THYRISTOR

Research of Frequency Discriminator on Frequency Lock Loops被引量：1: 《Journal of Beijing Institute of Technology》2008年第4期462-465,共4页徐颖吴嗣亮王菊; Frequency lock loops （FLL） discriminating algorithms for direct-sequence spread-spectrum are discussed. The existing algorithms can＇t solve the problem of data bit reversal during one pre-detection integral period....; 关键词：frequency discriminating four-quadrant arctangent LEAST-SQUARES

FOUR-QUADRANT