| Tutorial 1 | Tutorial
2 | Tutorial 3 | Tutorial
4 | Tutorial 5 | Tutorial
6 |
REVIEW QUESTIONS & ACTIVITIES
Describe how the "datum" is propagated from one GPS session
to the next. Where is the "datum" defined in the first place?
Discuss the characteristics of a "minimally constrained"
network solution. What output information is available?
Discuss the difference between "trivial" and "redundant"
baselines within single observation sessions, and for GPS campaigns in
general. Give a graphical example.
Discuss the factors that impact on the accuracy of a GPS network adjustment.
Why is the quality of GPS baseline results considered "optimistic"?
How is this manifest in a GPS network adjustment?
Describe the information content of the output VCV matrix from a network
adjustment. What are some of the characteristics of error ellipses/ellipsoids
that could be mentioned?
List and comment on the arguments for and against inclusion of trivial
baselines in a GPS network adjustment.
Describe the strategies that can be used to modify the VCV matrices
in order to ensure that the Variance Factor Test is passed. What factors
cause the VF Test to fail?
Discuss the advantages and disadvantages of multi-baseline processing
compared with the standard single baseline processing mode.
What are some of the ways of ensuring "redundancy" in a
GPS network? How can this be carried out during GPS planning?
© Chris Rizos, SNAP-UNSW, 1999