| Tutorial 1 | Tutorial
2 | Tutorial 3 | Tutorial
4 | Tutorial 5 | Tutorial 6 |
REVIEW QUESTIONS & ACTIVITIES
What is a baseline? What does it mean mathematically? In what datum
is it expressed? What datum information is contained within the GPS baseline
solution?
Describe the difference between "project design" and "logistical
planning", and explain how they influence each other and the ultimate
cost of the survey.
One of the reasons why stations with known heights are sometimes also
surveyed using GPS is for the determination of the geoid-spheroid separation.
How is this done?
List some of the factors influencing baseline accuracy. What is the
typical baseline accuracy relation?
Differentiate between the CLASS of a survey and the ORDER. What implications
does this have on client-surveyor contracts?
What is some of the information that can be obtained from planning
software such as SKI? Which are the more important for GPS survey planning?
Suggest some procedures for ascertaining if a GPS receiver is operating
correctly at a site?
What "Quality Control" procedures would you suggest be implemented
by Field Crews to ensure they collect good data? For example to ensure
they occupy the correct station, measure antenna height correctly, monitor
the receiver, look after the data, etc.
Design your own field documentation sheet(s) for conventional static
GPS surveying, and for "stop & go" GPS surveying. Assume you
are using Leica System 200 receivers.
Describe the esential differences in field procedures between the
various GPS surveying techniques: static, rapid static, stop &
go, reoccupation, and kinematic positioning.
Comment on how redundancy can be planned for rapid static or stop
& go GPS surveys. Comment on receiver deployment, checking procedures,
etc.
© Chris Rizos, SNAP-UNSW, 1999