Study of the errors of stereoscopic optical-electronic system for railroad track position

摘要

The combination of engineering geodesy methods with computer processing of digital images on the matrix field ofanalysis has found wide application in various automatic systems for monitoring the mutual spatial position of elements.The use of stereoscopic schemes allows to control the spatial position of the railway track relative to the brands placedon the supports of the contact network. When moving along the path in such schemes, additional errors arise due toblurring on the photo-receiving matrix fields. The article discusses the methodology for estimating additional errors dueto the movement of the stereoscopic optical-electronic system relative to fixed reference marks. Ways to reduceadditional errors from the speed of movement by adaptive control of the size of the input apertures and the exposure timeof images on photo-receiving matrix fields are proposed.