Basic concepts of optimization and design of geodetic networks

Amiri-Simkooei, A, Asgari, J, Zangeneh-Nejad, F and Zaminpardaz, S 2012, 'Basic concepts of optimization and design of geodetic networks', Journal of Surveying Engineering, vol. 138, no. 4, pp. 172-183.


Document type: Journal Article
Collection: Journal Articles

Title Basic concepts of optimization and design of geodetic networks
Author(s) Amiri-Simkooei, A
Asgari, J
Zangeneh-Nejad, F
Zaminpardaz, S
Year 2012
Journal name Journal of Surveying Engineering
Volume number 138
Issue number 4
Start page 172
End page 183
Total pages 12
Publisher American Society of Civil Engineers
Abstract This contribution reviews a few basic concepts of optimization and design of a geodetic network. Proper assessment and analysis of networks is an important task in many geodetic-surveying projects. Appropriate quality-control measures should be defined, and an optimal design should be sought. The quality of a geodetic network is characterized by precision, reliability, and cost. The aim is to present a few case studies that have been designed to meet optimal precision and reliability criteria. Though the case studies may be of interest to the geodetic community in their own right, the aim is to gain insight into the general optimization problem of a geodetic network. This is also potentially of interest for educational purposes. The case studies include a zeroth-order design to improve the precision of the network points in a traverse network and a first-order design to meet the high reliability and maximum precision criteria in a geodetic network. It is shown that not only the configuration of the network but also the type of the observations used can affect the design criteria. For example, the case studies presented show that the optimal shape of the trilateration network (intersection with distances) can result in a weak network in the sense of reliability and precision if the observations are replaced by angles rather than distances (triangulation network). In close relation to the optimization problem of a geodetic network, the global positioning system satellite configuration is also optimized for a particular case that provides the minimum value of the geometric dilution of precision.
Subject Geodesy
Geomatic Engineering not elsewhere classified
Keyword(s) Geometric dilution of precision
Optimization and design of geodetic networks
Quality control measures
DOI - identifier 10.1061/(ASCE)SU.1943-5428.0000081
Copyright notice © 2012 American Society of Civil Engineers.
ISSN 0733-9453
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