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DISTANCE: 作品数：1024被引量：1416H指数：14; 导出分析报告; 相关领域：自动化与计算机技术更多>>; 相关作者：李忠秋郝煦赵博文潘美朱顺荣更多>>; 相关机构：华中科技大学中国科学院南京航空航天大学清华大学更多>>; 相关期刊：更多>>; 相关基金：国家自然科学基金国家重点基础研究发展计划中国博士后科学基金国家教育部博士点基金更多>>

Research on Health Stage Division of Switch Machine Based on Bray-Curtis Distance and Fisher Optimal Segmentation Method: 《Chinese Journal of Electronics》2023年第5期955-962,共8页WU Xiaochun WEN Xin; supported by the Project Fund of China National Railway Group Co.,Ltd.(N2022G012);the Gansu Excellent Postgraduate Innovation Star Project(2022CXZX-615).; In order to reasonably and accurately evaluate the health status of the switch machine,a health stage division method of switch machine combining BrayCurtis distance and Fisher optimal segmentation is proposed.First,t...; 关键词：Switch machine Bray-Curtis distance Fisher optimal segmentation Health status

WCM-WTrA:A Cross-Project Defect Prediction Method Based on Feature Selection and Distance-Weight Transfer Learning被引量：1: 《Chinese Journal of Electronics》2022年第2期354-366,共13页LEI Tianwei XUE Jingfeng WANG Yong NIU Zequn SHI Zhiwei ZHANG Yu; supported by the National Key Research&Development Program of China(2020YFB1712104);Major Scientific and Technological Innovation Projects of Shandong Province(2020CXGC010116);the National Natural Science Foundation of China(61876019,U1936218,62072037);Zhejiang Lab(2020LE0AB02);Fundamental Research Funds for Beijing Universities of Civil Engineering and Architecture(X20069)。; Cross-project defect prediction is a hot topic in the field of defect prediction.How to reduce the difference between projects and make the model have better accuracy is the core problem.This paper starts from two per...; 关键词：Cross-project defect prediction Fea-ture engineering Feature selection Distance weight

Square Distance Symmetric Co-occurrence Matrix Thresholding Method Based on Relative Homogeneity被引量：2: 《Chinese Journal of Electronics》2020年第4期686-692,共7页ZHANG Hong FAN Jiulun; supported by the National Science Foundation of China(No.61571361,No.61671377)。; We studied a novel image thresholding method using symmetric co-occurrence matrix probability information,in which,the relative homogeneity characteristics of the segmented object and background is explored,square dis...; 关键词：Image thresholding Symmetric Cooccurrence Matrix Square distance Relative homogeneity

Wireless Channel Measurements and Modeling of LTE Broadband System for High-Speed Railway Scenarios: 《Chinese Journal of Electronics》2018年第5期1092-1097,共6页ZHAO Hua LYU Qing LIU Yachuan CHEN Jiaxing ZHANG Shujing; supported by the National Natural Science Foundation of China(No.61501168,No.61771181,No.61701165);Technology Foundation for Selected Overseas Chinese Scholar of Hebei Province(No.C2015005016);Hebei Province Education Office Foundation(No.QN2015030,No.QN2016100);Hebei Normal University Youth Foundation(No.L2015Q09,No.L2015Q12); In high-speed scenarios, channel model is of vital importance in Long term evolution(LTE) systems.By extensive measurements on Beijing-Tianjin railway, this paper proposes a distance-dependent channel model. Both larg...; 关键词：Distance-dependent channel model High-speed railway LTE system K-FACTOR Delay spread

The Hamming Distances of a Class of p-Ary Negacyclic Codes: 《Chinese Journal of Electronics》2018年第1期46-51,共6页DING Jian LI Hongju; supported by Anhui Province Natural Science Research(No.KJ2015A308,No.KJ2015JD18,No.KJ2016A307,No.KJ2017A623);Anhui Province Colleges Outstanding Young Talents Program(No.gxyq ZD2016389); Based on the construction of a new distance-preserving Gray map from((F_p + uF_p)~N, Gray distance) to(the corresponding Gray images in F_p^(pN), Hamming distance) and the calculation of Gray distances of(u-1)-constac...; 关键词：Negacyclic code Hamming distance Gray distance Gray map

An Improved Ionospheric Spatial Threat Model for SBAS被引量：2: 《Chinese Journal of Electronics》2017年第5期1105-1110,共6页ZHANG Qidong LI Rui WANG Zhipeng; supported by the National Natural Science Foundation of China(No.61501010,No.U1433114,No.61501014,No.61521091);Aeronautics Science Foundation(No.2015ZC51035); A conservative Grid ionospheric vertical delay error(GIVE) estimation would lead to conservative Protection levels(PLs) estimation and affects Satellitebased augmentation systems(SBAS) service performance.To reduce th...; 关键词：Spatial threat model Grid ionospheric vertical delay error(GIVE) Minimum separation distance

On l-th NMDS Codes: 《Chinese Journal of Electronics》2014年第3期454-457,共4页TONG Hongxi CHEN Wenhai YU Fei; Linear codes with Singleton defects equivalent to 0, 1, 2 are studied, and they have good properties. They are called MDS codes, NMDS codes, NNMDS cdoes, respectively. In this paper, we study linear codes with large S...; 关键词：Linear codes Maximum distance separated （MDS） codes Singleton defects Near maximum distance separated （NMDS） codes Generalized Hamming weights.

A Novel Generalized Simulation Technology of Aerospace TT&C Channel被引量：1: 《Chinese Journal of Electronics》2014年第1期204-208,共5页ZHOU Yang ZHENG Zhe WU Siliang; supported by the Foundation of Shanghai Aerospace Science and Technology(No.20120541088); A novel generalized simulation method is proposed to simulate the dynamic transmission delay of wideband and arbitrary signal in aerospace Tracking,telemetry and command(TT&C) channel. This method orthogonally demodul...; 关键词：GENERALIZATION Simulation High pre-cision dynamic interpolation and delay reconstruction Satellite-to-earth distance subsection and polynomial fit-ting.

Synthesis of Perceived Distance Synthesis: 《Chinese Journal of Electronics》2013年第3期549-552,共4页LI Juan YAN Yonghong; This work is supported by the National Natural Science Foundation of China （No.11161140319）.; Distance perception plays an important role in audio rendering. From listener＇s perspective, sound intensity and Direct-to-reverberant energy ratio （DRR） decrease while the distance between the listener and source ...; 关键词：Distance perception Wave field synthesis Loudspeaker array Direct-to-reverberant energy ratio.

Design and Analysis Information-based Assistant of a Simple GPS Code Relative Positioning Algorithm: 《Chinese Journal of Electronics》2013年第2期347-352,共6页XU Shenglei Sangsun LEE; Many vehicle application services called LBS （Location based services） are currently based on loca- tion information, but civil location equipment is either too expensive or the positioning accuracy is not high enou...; 关键词：Location based service GPS positioning Absolute positioning Relative positioning DGPS~ Rela- tive distance.

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