Results 21 to 30 of about 385,609 (307)

Observable set, observability, interpolation inequality and spectral inequality for the heat equation in Rn [PDF]

open access: yesJournal des Mathématiques Pures et Appliquées, 2017
This paper studies connections among observable sets, the observability inequality, the H\"{o}lder-type interpolation inequality and the spectral inequality for the heat equation in $\mathbb R^n$.
GengshengBB Wang   +3 more
semanticscholar   +1 more source

Adaptive transfer alignment method based on the observability analysis for airborne pod strapdown inertial navigation system

open access: yesScientific Reports, 2022
For the airborne pod strapdown inertial navigation system, it is necessary to use the host aircraft's inertial navigation system for the transfer alignment as quickly and accurately as possible in the flight process of the aircraft.
Weina Chen   +4 more
doaj   +1 more source

Observer’s observables. Residual diffeomorphisms [PDF]

open access: yesClassical and Quantum Gravity, 2017
23 ...
Duch, Paweł   +2 more
openaire   +2 more sources

On statistical power grid observability under communication constraints (invited paper)

open access: yesIET Smart Grid, 2018
Phasor Measurement Units (PMUs) have enabled real-time power grid monitoring and control applications realizing an integrated power grid and communication system. The communication network formed by PMUs has strict latency requirements.
Minglei You   +5 more
doaj   +1 more source

State Observability through Prior Knowledge: Analysis of the Height Map Prior for Track Cycling

open access: yesSensors, 2020
Inertial navigation systems suffer from unbounded errors in the position and orientation estimates. This drift can be corrected by applying prior knowledge, instead of using exteroceptive sensors. We want to show that the use of prior knowledge can yield
Tom L. Koller, Udo Frese
doaj   +1 more source

Moving and oblique observations of beams and plates [PDF]

open access: yes, 2019
We study the observability of the one-dimensional Schr{\"o}dinger equation and of the beam and plate equations by moving or oblique observations. Applying different versions and adaptations of Ingham's theorem on nonharmonic Fourier series, we obtain ...
Jaming, Philippe, Komornik, Vilmos
core   +2 more sources

Asymptotics for optimal design problems for the Schr\"odinger equation with a potential [PDF]

open access: yes, 2018
We study the problem of optimal observability and prove time asymptotic observability estimates for the Schr\"odinger equation with a potential in $L^{\infty}(\Omega)$, with $\Omega\subset \mathbb{R}^d$, using spectral theory. An elegant way to model the
Merkurjev, Ekaterina, Waters, Alden
core   +2 more sources

Exact observability and controllability for linear neutral type systems [PDF]

open access: yes, 2015
The problem of exact observability is analyzed for a wide class of neutral type systems by an infinite dimensional approach. The duality with the exact controllabil-ity problem is the main tool.
Rabah, Rabah, Sklyar, Grigory
core   +4 more sources

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

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