1077 KB50 KB197320252022Batilović, MehmedBulatović, VladimirKanović, ŽeljkoMarković, Marko Z.Sušić, Zoranštevilka:1letnik:66str. 60-75ISSN:0351-0271DOI:10.15292/geodetski-vestnik.2022.01.60-75COBISSID_HOST:107021827URN:URN:NBN:SI:doc-IOK8WIL8enZveza geodetov SlovenijeGeodetski vestnikgeneralised particle swarm optimisationgenetic algorithmgenetski algoritemrobust deformation analysisrobustna deformacijska analizasplošni algoritem optimizacije roja delcevDeformation analysis: the modified GREDOD method| Deformacijska analiza po modificirani metodi GREDOD|In this paper, a modi$ed Generalised Robust Estimation of Deformation from Observation Di%erences (GREDOD) method is presented, based on the application of genetic algorithm (GA) and generalised particle swarm optimisation (GPSO) algorithm in solving the optimisation problem of this method, which is, in essence, a problem of determining the optimal datum of the displacement vector. &e procedure of deformation analysis using this modi$cation of the GREDOD method is demonstrated in the example of the two-dimensional geodetic network presented in numerous research and in which all observations and displacements were simulated. Using both algorithms, GA and GPSO, almost identical results of deformation analysis were obtained, except datum solutions of the displacement vector, which are completely di%erent. &ese results di%er only slightly from the results obtained using the methods of Hannover, Karlsruhe, Delft, Fredericton, München, Caspary, and the classical robust methodV prispevku je predstavljena modi$cirana splošna robustna ocena deformacij iz razlike opazovanj (GREDOD), ki temelji na uporabi genetskega algoritma (GA) in splošnega algoritma optimizacije roja delcev (GPSO) za reševanje optimizacijskega problema te metode, pri čemer gre za problem določitve optimalnega datuma vektorja premika. Postopek deformacijske analize s to modi$kacijo metode GREDOD je prikazan na primeru dvodimenzionalne geodetske mreže, predstavljene v številnih raziskavah, v katerih so bila simulirana vsa opazovanja in premiki. Z uporabo obeh algoritmov GA in GPSO smo dobili skoraj enake rezultate deformacijske analize kot z metodami Hannover, Karlsruhe, Delft, Fredericton, München, Caspary in klasičnimi robustnimi metodami, le rešitve datuma vektorja premika so popolnoma različneTEXTznanstveno časopisjejournalsSlovenian National E-content AggregatorNational and University Library of SloveniaZveza geodetov Slovenije