GEOG 862
GPS and GNSS for Geospatial Professionals

Lesson 7 Overview

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Overview

Static GPS, where the receiver is stationary, is the original GPS method. And it is still the preferred approach to establishing the most accurate positions, the control. And some components of static GPS control methods are useful in GPS methods where the receiver is on a moving platform. These methods include real-time kinematic, RTK, and Differential GPS, DGPS work. It is interesting that there are some elements of static GPS, such as station diagrams, observations logs and to-reach descriptions that would rarely, if ever, be necessary in high-production dynamic work. And finally, there are aspects, though handled a bit differently in both categories of work that have utility in each. In this lesson, we start to get into the real details of how GPS work is done.

Objectives

At the successful completion of this lesson, students should be able to:

  • discuss the basics of planning a static GPS survey;
  • recognize the role of NGS control;
  • explain Continuously Operating Reference Stations;
  • explain Static GPS project design;
  • demonstrate drawing GPS baselines;
  • describe how to calculate the number of sessions necessary for a static survey;
  • explain the uses of real-time kinematic GPS and DGPS;
  • describe LADGPS and WADGPS;
  • define RTCM SC-104;
  • recognize the use of the radio licensing and cell phones in RTK;
  • recognize some practical RTK suggestions; and
  • recognize precise point positioning PPP.

Questions?

If you have any questions now or at any point during this week, please feel free to post them to the Lesson 7 Discussion Forum. (To access the forum, return to Canvas and navigate to the Lesson 7 Discussion Forum in the Lesson 7 module.) While you are there, feel free to post your own responses if you, too, are able to help out a classmate.