Results 31 to 40 of about 355,372 (306)

Optimal PMU Placement for Power System Dynamic State Estimation by Using Empirical Observability Gramian [PDF]

open access: yes, 2014
In this paper the empirical observability Gramian calculated around the operating region of a power system is used to quantify the degree of observability of the system states under specific phasor measurement unit (PMU) placement.
Kang, Wei, Qi, Junjian, Sun, Kai
core   +3 more sources

Angle-Only Cooperative Orbit Determination Considering Attitude Uncertainty

open access: yesSensors, 2023
In this paper, a novel concept for cooperative orbit determination (OD) using inter-spacecraft angle-only measurements is proposed. Different from the conventional cooperative OD that only estimates orbit states, the attitude of the observer spacecraft ...
Yishuai Shi   +5 more
doaj   +1 more source

Geometric control condition for the wave equation with a time-dependent observation domain [PDF]

open access: yes, 2016
We characterize the observability property (and, by duality, the controllability and the stabilization) of the wave equation on a Riemannian manifold $\Omega,$ with or without boundary, where the observation (or control) domain is time-varying.
Lebeau, Gilles   +3 more
core   +4 more sources

The Oracle Problem When Testing from MSCs [PDF]

open access: yes, 2013
Message Sequence Charts (MSCs) form a popular language in which scenario-based specifications and models can be written. There has been significant interest in automating aspects of testing from MSCs.
Dan, H, Hierons, RM
core   +2 more sources

Functional observability and subspace reconstruction in nonlinear systems

open access: yesPhysical Review Research, 2022
Time-series analysis is fundamental for modeling and predicting dynamical behaviors from time-ordered data, with applications in many disciplines such as physics, biology, finance, and engineering.
Arthur N. Montanari   +3 more
doaj   +1 more source

Wide area monitoring and measurements using mixed integer linear programming in deregulated power system for smart grid

open access: yesResults in Engineering, 2021
This paper deals with different methods involved in the determination of complete observability of power system under wide area monitoring using Phasor Measurement Unit (PMU).
Rajesh Kumar   +3 more
doaj   +1 more source

Low Regularity Ray Tracing for Wave Equations with Gaussian beams [PDF]

open access: yes, 2018
We prove observability estimates for oscillatory Cauchy data modulo a small kernel for $n$-dimensional wave equations with space and time dependent $C^2$ and $C^{1,1}$ coefficients using Gaussian beams. We assume the domains and observability regions are
Waters, Alden
core   +2 more sources

Enhancing Observability in Distribution Grids Using Smart Meter Data [PDF]

open access: yesIEEE Transactions on Smart Grid, 2016
Due to limited instrumentation, distribution grids are currently challenged by observability issues. On the other hand, smart meter data are communicated to utility operators from nodes with renewable generation and elastic demand.
Siddharth Bhela   +2 more
semanticscholar   +1 more source

Close Loop Design in Glucose Insulin Model with Effect of ‎Physical Exercise [PDF]

open access: yesJournal of Applied and Computational Mechanics, 2021
The minimal mathematical models for exercise and its extension is included the major exercise effects on plasma glucose and insulin levels. Model expectations for glucose and insulin dynamics are steady with current literature statistics.
Muhammad Farman, Ali Akgül, Aqeel Ahmad
doaj   +1 more source

Observability-Aware Trajectory Optimization for Self-Calibration With Application to UAVs [PDF]

open access: yesIEEE Robotics and Automation Letters, 2016
We study the nonlinear observability of a system's states in view of how well they are observable and what control inputs would improve the convergence of their estimates.
Karol Hausman   +3 more
semanticscholar   +1 more source

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