Trilateration adjustment by finite elements.

Abstract

Considers the trilateration net with distances and points as a structural framework with members and nodes. The framework must be supported for structural stability according to the nature of the problem. Redundant elements are removed and initial coordinates are calculated for the nodes. Misfits are obtained as differences between measured and calculated lengths from the initial coordinates. Stiffnesses of the members are the same as the weights of the corresponding distances. This information is input in the computer program FINITE. The output yields the displacements of the nodes in the directions of the axes of the coordinate system. - from ASCE Pulications Abstracts