Results 61 to 70 of about 3,031,723 (217)

Applying Wavelet Transformation in Blind Sources Separation

Majlesi Journal of Electrical Engineering
One of the most important problems in heart signal processing is the extraction of fetal electrocardiogram (FECG). One of the reasons that we are interested in FECG extraction is that this signal consists of important characteristics about healthy ...
Mohammad Shayesteh, Jamal Fallahian
doaj  

Stochastic stability of Lyapunov exponents and Oseledets splittings for semi-invertible matrix cocycles [PDF]

, 2022
Gary Froyland, Cecilia González‐Tokman, Anthony Quas   +2 more
openalex   +1 more source

A Robust Wavelet Based Watermarking System for Color Video

Majlesi Journal of Electrical Engineering
In this paper, we propose a wavelet based watermarking system. The system use wavelet transform for red, green and blues channel independently. We use space-time coding for encoding the watermark message before data embedding.
Alireza Ghasemi, Hooshang Kazemi
doaj  

Studying Transition Behavior of Neutron Point Kinetics Equations Using the Lyapunov Exponent Method [PDF]

Journal of Sciences, Islamic Republic of Iran, 2016
The neutron density is one of the most important dynamical parameters in a reactor. It is directly related to the control and stability of the reactor power. Any change in applied reactivity and some of dynamical parameters in the reactor causes a change
M. Seidi, R. Khodabakhsh, S. Behnia
doaj  

Dynamic Stability and Control of a Manipulating Unmanned Aerial Vehicle

International Journal of Aerospace Engineering, 2018
This paper focuses on the dynamic stability analysis of a manipulator mounted on a quadrotor unmanned aerial vehicle, namely, a manipulating unmanned aerial vehicle (MUAV).
Yunping Liu, Xijie Huang, Yonghong Zhang, Yukang Zhou   +3 more
doaj   +1 more source

QUALITATIVE AND STABILITY ANALYSIS WITH LYAPUNOV FUNCTION OF EMOTION PANIC SPREADING MODEL INSIGHT OF FRACTIONAL OPERATOR

, 2023
Peiluan Li, Changjin Xu, Muhammad Farman, Ali Akgül, Yicheng Pang   +4 more
openalex   +1 more source

The covariant Lyapunov tensor and the Lyapunov stability with respect to time-dependent Riemannian metrics [PDF]

, 2022
G. Sardanashvily
openalex   +1 more source

Lyapunov Function based Criteria for Ship Rolling in Random Beam Seas

Polish Maritime Research, 2019
The aim of this study is to present a Lyapunov function which can be used to derive an intact stability criterion for a ship in random beam seas. First, the mathematical model of the rolling motion of ships in random beam seas is introduced.
Üçer Erdem
doaj   +1 more source

Stabilization of nonlinear safety-critical systems by relaxed converse Lyapunov-barrier approach and its applications in robotic systems

Autonomous Intelligent Systems
Combining safety objectives with stability objectives is crucial for safety-critical systems. Existing studies generally unified these two objectives by constructing Lyapunov-type barrier functions. However, insufficient analysis of key set relationships
Haoqi Li, Jiangping Hu, Xiaoming Hu, Bijoy K. Ghosh   +3 more
doaj   +1 more source

Lyapunov Stability of the Generalized Stochastic Pantograph Equation

Journal of Mathematics, 2018
The purpose of the paper is to study stability properties of the generalized stochastic pantograph equation, the main feature of which is the presence of unbounded delay functions. This makes the stability analysis rather different from the classical one.
Ramazan Kadiev, Arcady Ponosov
doaj   +1 more source