Document Type : Research Paper

Author

• Mohammad Ali Rajabi

Abstract

In recent years, various methods of stationary and mobile surveying or Global Positioning System (G.P.S) have been developed and utilized. The purpose of GPS-based surveying is to determine relative positions with high precision based on the observations of the GPS carrier wave phase
complemented by consideration of resolution of the carrier wave phase ambiguity.
Unfortunately, not only is the difference between various methods invented for most of our surveying cases unclear, but the way in which they are applied was, and is, shadowed by ambiguity as well, and, what’s more, in Iran they have either not been used at all or used only at the academic level. In addition, the application of similar names for different methods has been a cause of the
confusion of most of users.
This paper intends to describe the differences between various stationary and mobile surveying methods and to clarify their distinctive qualities.