Results 31 to 40 of about 1,932,383 (293)

Optimal measurements for simultaneous quantum estimation of multiple phases [PDF]

open access: yes, 2004
A quantum theory of multiphase estimation is crucial for quantum-enhanced sensing and imaging and may link quantum metrology to more complex quantum computation and communication protocols.
Adams, J.   +359 more
core   +6 more sources

Robust dynamic and algebraic state estimation for microgrids: A generalized approach

open access: yesIET Renewable Power Generation, 2023
Network control, optimization, and security analysis are facilitated by accurate microgrid state estimation. By utilizing phasor measurement units (PMUs), a combined robust centralized dynamic algebraic approach is proposed in this paper for estimating ...
Iraj Pourkeivani   +4 more
doaj   +1 more source

Edge estimation method for non-uniform envelope pulse based on instantaneous frequency

open access: yesThe Journal of Engineering, 2019
Pulse edge estimation has always been an important issue in the field of electronic reconnaissance. Here, for the unknown received pulse with non-uniform envelope, a novel pulse edge estimation method based on instantaneous frequency is proposed.
Jingyun Sun, Jiacen Xu, Lixiang Ren
doaj   +1 more source

Maximizing information on the environment by dynamically controlled qubit probes [PDF]

open access: yes, 2015
We explore the ability of a qubit probe to characterize unknown parameters of its environment. By resorting to quantum estimation theory, we analytically find the ultimate bound on the precision of estimating key parameters of a broad class of ubiquitous
Alvarez, Gonzalo A.   +2 more
core   +2 more sources

Formulation of the Alpha Sliding Innovation Filter: A Robust Linear Estimation Strategy

open access: yesSensors, 2022
In this paper, a new filter referred to as the alpha sliding innovation filter (ASIF) is presented. The sliding innovation filter (SIF) is a newly developed estimation strategy that uses innovation or measurement error as a switching hyperplane.
Mohammad AlShabi, Stephen Andrew Gadsden
doaj   +1 more source

Robust quantum parameter estimation: coherent magnetometry with feedback [PDF]

open access: yes, 2003
We describe the formalism for optimally estimating and controlling both the state of a spin ensemble and a scalar magnetic field with information obtained from a continuous quantum limited measurement of the spin precession due to the field.
Doherty, Andrew C.   +3 more
core   +3 more sources

Unbiased converted measurement manoeuvering target tracking under maximum correntropy criterion

open access: yesCognitive Computation and Systems, 2020
In this study, the manoeuvering target tracking problem is addressed by using the unbiased converted measurements from a two-dimensional radar system.
Guoyong Wang, Xiaoliang Feng
doaj   +1 more source

Estimation of human gait features by trajectory tracking and recombination using radar range‐Doppler‐time data

open access: yesIET Radar, Sonar & Navigation, 2023
Radar enables a convenient, contactless way for gait analysis in daily scenarios, such as in‐home health monitoring. However, the overlapping of human limb components could occur in both range and velocity dimensions of the radar echo, which makes it ...
Tong Mao   +4 more
doaj   +1 more source

Network Coding: Connections Between Information Theory And Estimation Theory

open access: yes, 2016
In this paper, we prove the existence of fundamental relations between information theory and estimation theory for network-coded flows. When the network is represented by a directed graph G=(V, E) and under the assumption of uncorrelated noise over ...
Ghanem, Samah A. M.
core   +1 more source

Cramér–Rao Lower Bound for Magnetic Field Localization around Elementary Structures

open access: yesSensors
The determination of a mobile terminal’s position with high accuracy and ubiquitous coverage is still challenging. Global satellite navigation systems (GNSSs) provide sufficient accuracy in areas with a clear view to the sky. For GNSS-denied environments
Armin Dammann   +2 more
doaj   +1 more source

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