Gps-aided Aerial Triangulation Experimental Study, In The Large-scale Aerial Photogrammetry

This paper is to study the digital photogrammetric system of photogrammetry experimental study, which involves using auxiliary GPS measurement method to measure the triangle. Auxiliary GPS air triangle measuring has been used, and has obtained some achievements in the modern society, used more widely. The technology is more and more advanced, but still no large-scale applied in production, have certain restriction. Auxiliary GPS air triangle measuring applied in small scale topographic map techniques maturing, however in large scale application or in the stage of exploration.This paper mainly studies the digital photogrammetric system based on the triangle measuring the experimental research focuses on the research on VirtuoZo AAT is a software platform for the GPS auxiliary air triangle measuring large scale topographic maps in the application, and the content includes:(1) Digital photogrammetric basic theory and the related knowledge of photogrammetry.(2) The triangle measuring and GPS auxiliary air triangle measuring principle and its regional network theory.(3) VirtuoZo AAT software platform of the operation process and problems encountered in the plain area, topographic map as an example, studies the GPS auxiliary air triangle measuring application. Through the GPS data and control of auxiliary system in six different combination design scheme, from the precision and the workload, select the best scheme, in order to reduce the workload, field.