| Summary: | Precision, reliability and cost are the major criteria
applied in optimization and design of geodetic networks.
The terrestrial networks are being replaced quickly
by permanent and campaign Global Positioning System
(GPS) networks. These networks must be optimized using
the same three criteria. In this article the optimization of
the observational plan of local GPS networks (Second Order
Design (SOD)) is considered using the precision criterion.
This study is limited to the selection of optimal numbers
and the best distribution of the non-trivial baselines
throughout the network. This objective is accomplished
based on the SOD solution through the analytical method
in operational research by the means of quadratic programming
algorithm. This presented method is tested on
a real GPS network and appears to be a useful technique
in terms of cost reduction in the field work by the provided
observational plan and optimal distribution of the
baselines throughout the network. Results indicate that
weights of almost 36% of the baselines are negligiblewhen
compared to the weights of the rest of the baselines; therefore,
they could be eliminated fromthe observational plan,
resulting in a 36% saving in the fieldwork cost.
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