Results 11 to 20 of about 424,619 (265)

Estimation Bounds of Beat Signal in the R-Mode Localization System

open access: yesIEEE Access, 2021
The R-Mode system is a terrestrial navigation system currently under development, which exploits existing means of medium frequency radio transmission. The positioning and timing performance depends on the estimation of the signals’ phase offset ...
Lars Grundhofer   +2 more
doaj   +1 more source

Unbiased quantum phase estimation

open access: yesQuantum Information and Computation, 2023
Quantum phase estimation algorithm (PEA) is one of the most important algorithms in early studies of quantum computation. However, we find that the PEA is not an unbiased estimation, which prevents the estimation error from achieving an arbitrarily small level. In this paper, we propose an unbiased phase estimation algorithm (UPEA) based on the
Xi Lu, Hongwei Lin
openaire   +2 more sources

Dynamic Phase Demodulation Algorithm for Phase-Sensitive OTDR With Direct Detection

open access: yesIEEE Access, 2020
A dynamic phase demodulation algorithm for direct detection Φ-OTDR is proposed and experimentally demonstrated. It offers a way for single channel direct detection Φ-OTDR, which is the simplest and most cost-effective structure, to realize ...
Yi Shi   +4 more
doaj   +1 more source

Self-Learning Event Mistiming Detector Based on Central Pattern Generator

open access: yesFrontiers in Neurorobotics, 2021
A repetitive movement pattern of many animals, a gait, is controlled by the Central Pattern Generator (CPG), providing rhythmic control synchronous to the sensed environment.
Rudolf Szadkowski   +2 more
doaj   +1 more source

Incompressibility Estimates for the Laughlin Phase [PDF]

open access: yesCommunications in Mathematical Physics, 2014
This paper has its motivation in the study of the Fractional Quantum Hall Effect. We consider 2D quantum particles submitted to a strong perpendicular magnetic field, reducing admissible wave functions to those of the Lowest Landau Level. When repulsive interactions are strong enough in this model, highly correlated states emerge, built on Laughlin's ...
Rougerie, Nicolas, Yngvason, Jakob
openaire   +3 more sources

Positioning in a Multipath Channel Using OFDM Signals With Carrier Phase Tracking

open access: yesIEEE Access, 2020
In developing a high accuracy terrestrial radio navigation system, as a complement to a global navigation satellite system (GNSS), it is recognized that the performance of time delay estimation is proportional to, and thereby limited by, the signal ...
Han Dun   +2 more
doaj   +1 more source

Faster phase estimation

open access: yesQuantum Information and Computation, 2014
We develop several algorithms for performing quantum phase estimation based on basic measurements and classical post-processing. We present a pedagogical review of quantum phase estimation and simulate the algorithm to numerically determine its scaling in circuit depth and width.
Krysta M. Svore   +2 more
openaire   +2 more sources

An Extended Version of the Proportional Adaptive Algorithm Based on Kernel Methods for Channel Identification with Binary Measurements

open access: yesJournal of Telecommunications and Information Technology, 2022
In recent years, kernel methods have provided an important alternative solution, as they offer a simple way of expanding linear algorithms to cover the non-linear mode as well.
Rachid Fateh, Anouar Darif, Said Safi
doaj   +1 more source

Robust Gradient Estimator for Unknown Frequency Estimation in Noisy Environment: Application to Grid-Synchronization

open access: yesIEEE Access, 2020
Grid-connected converters are an important class of power electronic systems. Many power and energy applications require grid-connected converters. To control grid-connected converters, precise information of the grid voltage frequency and phase are ...
Hafiz Ahmed   +3 more
doaj   +1 more source

Efficient knowledge-aided target relocation algorithm for airborne radar

open access: yesThe Journal of Engineering, 2019
This letter addresses the problem of target relocation in wide-area ground moving target indication system. The antenna pattern information is exploited as prior knowledge to enhance the performance of airborne radar. Firstly, the ideal target relocation
Hongmeng Chen   +7 more
doaj   +1 more source

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