Systèmes de Référence, Systèmes Projectifs

Authors: Henri Marcel Dufour, Abdelmajid Ben Hadj Salem

Many geodetic works currently exist on the surface of the globe, which have developed through regional networks, usually each having a fundamental point, where the astronomical data (\phi= latitude,\lambda=longitude,Az=azimuth) of a reference are confused with the counterparts geodetic data. The comparison of 2 networks, and, step by step, of all the connectable networks, can be done by the analysis of the coordinates of their common points. To this end, we can use 3 types of coordinates: - Geographical coordinates = simple method, but not very convenient for different ellipsoids. - Three-dimensional cartesian coordinates, the most rigorous method in the case where the so-called geoid correction has been made. - Coordinates in conformal projection. An analysis of the main formulas that can be used is studied by the first author in this article.

Comments: 27 Pages. In French. It is an-update version of a paper dated 1979 with comments of the second author.

Download: PDF

Submission history

[v1] 2019-05-13 11:00:44
[v2] 2019-05-14 08:30:24

Unique-IP document downloads: 15 times is a pre-print repository rather than a journal. Articles hosted may not yet have been verified by peer-review and should be treated as preliminary. In particular, anything that appears to include financial or legal advice or proposed medical treatments should be treated with due caution. will not be responsible for any consequences of actions that result from any form of use of any documents on this website.

Add your own feedback and questions here:
You are equally welcome to be positive or negative about any paper but please be polite. If you are being critical you must mention at least one specific error, otherwise your comment will be deleted as unhelpful.

comments powered by Disqus