Search | Engineering

Subscribe Submit

Home Journals Focus Achievement Fronts About Us 中文版

Resource Type

Journal Article 7

Year

2022 2

2017 1

2016 1

2007 1

2006 2

Keywords

Audio watermarking 1

Distributed game strategy 1

Distributed model predictive control (MPC) 1

Fractional order 1

Input delay 1

LMI 1

Levy flight based pigeon inspired optimization (LFPIO) 1

Linear matrix inequality 1

Machine learning 1

Non-singular fast terminal sliding mode observer (NFTSMO) 1

Observer-based control 1

Obstacle avoidance strategy 1

SVD 1

Singular systems 1

Singular value decomposition (SVD) 1

Support vector machine (SVM) 1

Theoretical 1

Unmanned aerial vehicle (UAV) 1

coefficient 1

open ︾

Search scope:

排序： Display mode:

De-noising of diesel vibration signal using wavelet packet and singular value decomposition

DUAN Li-xiang, ZHANG Lai-bin, WANG Zhao-hui

Frontiers of Mechanical Engineering 2006, Volume 1, Issue 4, Pages 443-447 doi: 10.1007/s11465-006-0055-6

Abstract: Secondly, singular value decomposition is applied to de-noising vibration signals.Finally, a new de-noise method integrated with wavelet packet and singular value is presented.vibration signals are decomposed by wavelet packet, and the wavelet packet coefficient is de-noised by singular

Keywords： coefficient de-noised cylinder signal-to-noise wavelet decomposition

HTML PDF Collect

Analysis of nonlinear channel friction inverse problem

CHENG Weiping, LIU Guohua

Frontiers of Structural and Civil Engineering 2007, Volume 1, Issue 2, Pages 205-210 doi: 10.1007/s11709-007-0024-0

Abstract: Based on the Backus-Gilbert inverse theory, the singular value decomposition (SVD) for general inverse

Keywords： singular SVD second-order covariance Theoretical

HTML PDF Collect

Observer-based control for fractional-order singular systems with order Research Article

Bingxin LI, Xiangfei ZHAO, Xuefeng ZHANG, Xin ZHAO

Frontiers of Information Technology & Electronic Engineering 2022, Volume 23, Issue 12, Pages 1862-1870 doi: 10.1631/FITEE.2200294

Abstract: In this paper, for fractional-order with order (0<<1) and is studied. On the basis of the Smith predictor and approximation error, the system with is approximately equivalent to the system without . Furthermore, based on the (LMI) technique, the necessary and sufficient condition of is proposed. Since the condition is a nonstrict LMI, including the equality constraint, it will lead to some trouble when solving problems using toolbox. Thus, the strict LMI-based condition is improved in the paper. Finally, a numerical example and a direct current motor example are given to illustrate the effectiveness of the strict LMI-based condition.

Keywords： Observer-based control Singular systems Fractional order Input delay Linear matrix inequality

HTML PDF Collect

Weak characteristic information extraction from early fault of wind turbine generator gearbox

Xiaoli XU, Xiuli LIU

Frontiers of Mechanical Engineering 2017, Volume 12, Issue 3, Pages 357-366 doi: 10.1007/s11465-017-0423-4

Abstract: characteristic information during early fault evolution in gearbox of wind turbine generator, traditional singular

Keywords： wind turbine generator gearbox µ-singular value decomposition local mean decomposition weak characteristic

HTML PDF Collect

A robust intelligent audio watermarking scheme using support vector machine Article

Mohammad MOSLEH,Hadi LATIFPOUR,Mohammad KHEYRANDISH,Mahdi MOSLEH,Najmeh HOSSEINPOUR

Frontiers of Information Technology & Electronic Engineering 2016, Volume 17, Issue 12, Pages 1320-1330 doi: 10.1631/FITEE.1500297

Abstract: paper presents a new robust intelligent audio water-marking scheme using a synergistic combination of singularThe methodology involves embedding a watermark data by modulating the singular values in the SVD transform

Keywords： Audio watermarking Copyright protection Singular value decomposition (SVD) Machine learning Support

HTML PDF Collect

Output Feedback Control for the Descriptor TS Fuzzy Systems With Pole-placement Constraints

Gao Dan,Cao Yuanyuan

Strategic Study of CAE 2006, Volume 8, Issue 4, Pages 63-67

Abstract:

The design of dynamic output-feedback controller is investigated for the descriptor fuzzy TS models. By transforming the design problem into the feasible solution problems to a set of linear matrix inequalities, the properly stabilizing output controllers are obtained. The resulting closed-loop system can be ensured to satisfy certain performance index and locate at the required pole-placement region.

Keywords： singular fuzzy system dynamic output-feedback LMI pole placement

HTML PDF Collect

Distributed game strategy for unmanned aerial vehicle formation with external disturbances and obstacles Research Article

Yang YUAN, Yimin DENG, Sida LUO, Haibin DUAN

Frontiers of Information Technology & Electronic Engineering 2022, Volume 23, Issue 7, Pages 1020-1031 doi: 10.1631/FITEE.2100559

Abstract: We investigate a for formations with external disturbances and obstacles. The strategy is based on a framework and . First, we propose a to estimate the influence of a disturbance, and prove that the observer converges in fixed time using a Lyapunov function. Second, we design an based on topology reconstruction, by which the UAV can save energy and safely pass obstacles. Third, we establish a distributed MPC framework where each UAV exchanges messages only with its neighbors. Further, the cost function of each UAV is designed, by which the UAV formation problem is transformed into a game problem. Finally, we develop LFPIO and use it to solve the Nash equilibrium. Numerical simulations are conducted, and the efficiency of LFPIO based distributed MPC is verified through comparative simulations.

Keywords： Distributed model predictive control (MPC) Levy flight based pigeon inspired optimization (LFPIO) Non-singular