Show/Hide Menu
Hide/Show Apps
Logout
Türkçe
Türkçe
Search
Search
Login
Login
OpenMETU
OpenMETU
About
About
Open Science Policy
Open Science Policy
Communities & Collections
Communities & Collections
Help
Help
Frequently Asked Questions
Frequently Asked Questions
Guides
Guides
Thesis submission
Thesis submission
MS without thesis term project submission
MS without thesis term project submission
Publication submission with DOI
Publication submission with DOI
Publication submission
Publication submission
Supporting Information
Supporting Information
General Information
General Information
Copyright, Embargo and License
Copyright, Embargo and License
Contact us
Contact us
Time synchronization in measurement networks
Download
index.pdf
Date
2010
Author
Kaya, Zahit Evren
Metadata
Show full item record
Item Usage Stats
28
views
17
downloads
Cite This
AMR (Automatic Measurement Reading) applications usually require measurement data to be collected from separate locations. In order to combine the data retrieved from separate sources into a meaningful result, all sources should share a common time sense. Therefore, it is necessary to implement a synchronization scheme in measurement networks. In this thesis, a synchronization scheme which combines GPS (Global Positioning System) and two high accuracy WSN (Wireless Sensor Network) time synchronization algorithms will be proposed and evaluated. The synchronization accuracy of the proposed method is compared to the accuracy of NTP (Network Time Protocol) by simulation. This research work is fully supported by the Public Research Grant Committee (KAMAG) of TUBİTAK within the scope of National Power Quality Project of Turkey with the project No: 105G129
Subject Keywords
Electrical engineering.
,
T Information Technology 58.5-58.64
URI
http://etd.lib.metu.edu.tr/upload/2/12611585/index.pdf
https://hdl.handle.net/11511/19398
Collections
Graduate School of Natural and Applied Sciences, Thesis
Suggestions
OpenMETU
Core
OPTIMAL RANKING OF MEASUREMENTS FOR STATE ESTIMATION BY THE GRADIENT PROJECTION METHOD
SEVAIOGLU, O; ESKICIOGLU, AM; Leblebicioğlu, Mehmet Kemal (Elsevier BV, 1992-12-01)
Optimal measurement ranking is the first and essential step in meter selection for the design of a reliable measurement system. This paper presents a computationally-efficient algorithm for the optimal ranking of measurements for state estimation. The algorithm maximizes the accuracy of estimates with respect to the measurement variances by performing a transformation on the problem.formulation, and minimizing the resulting cost function subject to a set of linear constraints.
EXECUTION TIME MODELING WITH SINGLE NODE GATHER PROBLEM ON TRANSPUTERS
UNAL, E; GURAN, H (Informa UK Limited, 1994-01-01)
A methodology is presented for estimating the total execution time of loosely coupled parallel processing applications. The single node gather problem is considered as the communication primitive. The derived model is verified and illustrated on an image processing application with a network of transputers connected as a ternary tree. The expected execution times obtained by the model are validated experimentally and the model is then used to estimate the performance of the system with larger transputer net...
Direction finding accuracy of sequential lobing under target amplitude fluctuations
Candan, Çağatay (Institution of Engineering and Technology (IET), 2015-01-01)
Using recently developed statistical target fluctuation models, the accuracy of sequential lobing is analytically studied. The study shows that the sequential lobing method suffers from a significant performance loss, in comparison with the monopulse method, for the Rayleigh fluctuation model. For other fluctuation models, the performance loss gradually decreases as the amplitude spread associated with the fluctuation gets smaller. The present study aims to analytically quantify the mentioned accuracy loss ...
Multitarget tracking performance metric: deficiency aware subpattern assignment
Oksuz, Kemal; CEMGİL, ALİ TAYLAN (2018-03-01)
Multitarget tracking is a sequential estimation problem where conditioned on noisy sensor measurements, state variables of several targets need to be estimated recursively. In this study, the authors propose a novel performance measure for multitarget tracking named as Deficiency Aware Subpattern Assignment (DASA), that can be used to consistently compare algorithms in a broad spectrum of formulations ranging from conventional data association methods to random finite set based multitarget tracking algorith...
Quantitative measure of observability for linear stochastic systems
Subasi, Yuksel; Demirekler, Mübeccel (Elsevier BV, 2014-06-01)
In this study we define a new observability measure for stochastic systems: the mutual information between the state sequence and the corresponding measurement sequence for a given time horizon. Although the definition is given for a general system representation, the paper focuses on the linear time invariant Gaussian case. Some basic analytical results are derived for this special case. The measure is extended to the observability of a subspace of the state space, specifically an individual state and/or t...
Citation Formats
IEEE
ACM
APA
CHICAGO
MLA
BibTeX
Z. E. Kaya, “Time synchronization in measurement networks,” M.S. - Master of Science, Middle East Technical University, 2010.