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Z-TRANSFORM: 作品数：25被引量：37H指数：3; 导出分析报告; 相关领域：电子电信更多>>; 相关作者：王海燕张冲鞠佩恒林永华更多>>; 相关机构：东南大学中国科学院电子学研究所厦门大学更多>>; 相关期刊：《Communications in Theoretical Physics》《Journal of Donghua University(English Edition)》《Chinese Physics B》《Journal of Water Resource and Protection》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北京市自然科学基金湖北省自然科学基金更多>>

Roll angular rate extraction based on modified spline-kernelled chirplet transform被引量：1: 《Defence Technology（防务技术）》2022年第5期876-890,共15页Hui Zhao Zhong Su Qing Li Fu-chao Liu Ning Liu; National Natural Science Foundation(NNSF)of China under Grant 61771059;National Natural Science Foundation(NNSF)of China under Grant 61471046;Beijing Natural Science Foundation under Grant 4172022 to provide fund for conducting experiments。; The roll angular rate is much crucial for the guidance and control of the projectile.Yet the high-speed rotation of the projectile brings severe challenges to the direct measurement of the roll angular rate.Neverthele...; 关键词：High spinning projectile Roll angular rate Time-frequency analysis Spline-kernelled chirplet transform Chirp Z-transform

Frequency Domain Convolution of Rational Transfer Functions: 《Journal of Applied Mathematics and Physics》2022年第6期2117-2129,共13页Ishan Kar; The convolution of two rational transfer functions is also rational, but a formula for the convolution has never been derived. This paper introduces a formula for the convolution of two rational functions in the frequ...; 关键词：Z-TRANSFORM Laplace Transform Frequency Domain CONVOLUTION

On Sample Size Determination When Comparing Two Independent Spearman or Kendall Coefficients被引量：2: 《Open Journal of Statistics》2022年第2期291-302,共12页Justine O. May Stephen W. Looney; One of the most commonly used statistical methods is bivariate correlation analysis. However, it is usually the case that little or no attention is given to power and sample size considerations when planning a study i...; 关键词：Fisher z-Transform Hypothesis Testing POWER Significance Level

Numerical Computations of Nonlocal Schrodinger Equations on the Real Line被引量：1: 《Communications on Applied Mathematics and Computation》2020年第2期241-260,共20页Yonggui Yan Jiwei Zhang Chunxiong Zheng; Jiwei Zhang is partially supported by the National Natural Science Foundation of China under Grant No.11771035;the NSAF U1530401;the Natural Science Foundation of Hubei Province No.2019CFA007;Xiangtan University 2018ICIP01;Chunxiong Zheng is partially supported by Natural Science Foundation of Xinjiang Autonom ous Region under No.2019D01C026;the National Natural Science Foundation of China under Grant Nos.11771248 and 91630205。; The numerical computation of nonlocal Schrödinger equations (SEs) on the whole real axis is considered. Based on the artifcial boundary method, we frst derive the exact artifcial nonrefecting boundary conditions. For ...; 关键词：Nonrefecting boundary conditions Artifcial boundary method Nonlocal Schrödinger equation Z-TRANSFORM Nonlocal models

A Robust Image Watermarking Scheme Using Z-Transform, Discrete Wavelet Transform and Bidiagonal Singular Value Decomposition被引量：2: 《Computers, Materials & Continua》2019年第1期263-285,共23页N.Jayashree R.S.Bhuvaneswaran; Watermarking is a widely used solution to the problems of authentication and copyright protection of digital media especially for images,videos,and audio data.Chaos is one of the emerging techniques adopted in image w...; 关键词：Digital WATERMARKING chaotic mapping Z-TRANSFORM ARNOLD cat map discrete wavelet transform(DWT) bidiagonal SINGULAR value decomposition(BSVD)

Zeta Functions of the Complement and xyz-Transformations of a Regular Graph: 《Journal of Donghua University(English Edition)》2018年第6期480-485,共6页WANG Xueqin DENG Aiping; National Natural Science Foundation of China(No.11671258); Let Z(λ,G)denote the zeta function of a graph G.In this paper the complement G^Cand the G^(xyz)-transformation G^(xyz)of an r-regular graph G with n vertices and m edges for x,y,z∈{0,1,+,-},are considerd.The relatio...; 关键词：regular graph COMPLEMENT xyz-transformation ZETA function

Analysis of Higher Order System with Impulse Exciting Functions in Z-Domain: 《Circuits and Systems》2016年第11期3951-3970,共20页Branislav Dobrucký Pavol Štefanec Mariana Beňová Oleg V. Chernoyarov Michal Pokorný; This paper deals with mathematical modelling of impulse waveforms and impulse switching functions used in electrical engineering. Impulse switching functions are later investigated using direct and inverse z-transform...; 关键词：Impulse Systems Switching Function Z-Transformation Inverse Z-Transformation Steady State Operation Dynamical State Model Modelling and Simulation

Queue Size Distribution of Geo/G/1 Queue Under the Min(N,D)-Policy被引量：14: 《Journal of Systems Science & Complexity》2016年第3期752-771,共20页GU Jianxiong WEI Yingyuan TANG Yinghui YU Miaomiao; supported by the National Natural Science Foundation of China under Grant Nos.71171138,71301111,71571127;the Scientific Research Innovation&Application Foundation of Headmaster of Hexi University under Grant Nos.XZ2013-06,XZ2013-09; This paper considers a discrete-time Geo/G/1 queue under the Min（N, D）-policy in which the idle server resumes its service if either N customers accumulate in the system or the total backlog of the service times of ...; 关键词：Min（N D）-policy discrete-time queue queue length distribution system capacity opti mum design total probability decomposition technique z-transform.

On Impulse Switching Functions of Inverters as an Orthogonal System: 《Journal of Mathematics and System Science》2014年第12期743-749,共7页B. Dobrucky M. Pokomy M. Benova; The paper deals with impulse switching function which are used as exciting functions of one- and multidimensional state-space models of power electronic converters. Obviously, these functions are harmonic but using po...; 关键词：Power converter impulse switching function Z-TRANSFORM inverse Z-transform modelling and simulation steady stateoperation

Flexible Time Domain Averaging Technique被引量：1: 《Chinese Journal of Mechanical Engineering》2013年第5期1022-1030,共9页ZHAO Ming LIN Jing LEI Yaguo WANG Xiufeng; supported by National Natural Science Foundation of China(Grant Nos.51125022;51005173);PhD Programs Foundation of Ministry of Education of China(Grant No.20110201110025);the Fundamental Research Funds for the Central Universities of China; Time domain averaging(TDA) is essentially a comb filter,it cannot extract the specified harmonics which may be caused by some faults,such as gear eccentric.Meanwhile,TDA always suffers from period cutting error(PCE) t...; 关键词：time domain averaging chirp Z-transform period cutting error DE-NOISING INTERPOLATION

Z-TRANSFORM