Intro to GPS test 3 questions n
answers rated A+
The two traditional types of kinematic GNSS survey methods are ___________ (for
synchronous) and ___________ (for asynchronous) which allow either synchronous or
asynchronous positional computations.
(use three letter acronyms for each type) - correct answer ✔✔ RTK RTN
The live broadcast of base station corrections that allows relative positioning of GNSS rover
positions, is typically offered through a subscription service and is referred to as a ________.
Enter the three letter acronym or the three word term - correct answer ✔✔ RTN
RTK positional errors caused by rover receivers which are moving during data collection is
referred to as data ________. - correct answer ✔✔ latency
Kinematic surveys are _____ to PDOP spikes compared to Static GNSS surveys - correct answer
✔✔ more venerable
To start a kinematic survey receivers must be [i], which requires the integer ambiguity to be
resolved. - correct answer ✔✔ Initialized
The most common method to initialize a rover receiver today (using modern GNSS software) is
_______. - correct answer ✔✔
What are the three types of kinematic surveys? - correct answer ✔✔ post-process kinematic
real-time network
real-time kinematic
, Select areas of surveying where GNSS kinematic surveys can be employed. - correct answer ✔✔
mapping
construction
photogrammetry
What are commonalities between a static survey and a kinematic survey? - correct answer ✔✔
Two receivers, the base and the rover, are used.
Positioning computational procedures are similar.
Integer ambiguities need to be resolved before starting a survey
List six limiting factors in regards to the accuracies achievable in kinematic surveys. - correct
answer ✔✔ susceptibility to DOP spikes, atmospheric and ionospheric. refraction, multipathing,
and obstructions to satellite signals.
use of the broadcast ephemerides.
insignificant change in the satellite geometry during the session.
motion of the rover during data processing, causing data latency.
short length of the session.
lack of repeated observations.
How does an RTN survey mitigate some of a kinematics surveys limiting factors in accuracy ? -
correct answer ✔✔ An RTN survey mitigates some of the limiting factors by having corrections
determined using a network of physical base stations.
A storm front passes over the base station, which is 4 kmkm away from the rover. Why should
the GNSS survey be stopped until the same front passes over the rover? - correct answer ✔✔
Except when using real-time networks, the software used in kinematic surveys assumes that
both base and roving receivers are in the same --atmospheric conditions.--
answers rated A+
The two traditional types of kinematic GNSS survey methods are ___________ (for
synchronous) and ___________ (for asynchronous) which allow either synchronous or
asynchronous positional computations.
(use three letter acronyms for each type) - correct answer ✔✔ RTK RTN
The live broadcast of base station corrections that allows relative positioning of GNSS rover
positions, is typically offered through a subscription service and is referred to as a ________.
Enter the three letter acronym or the three word term - correct answer ✔✔ RTN
RTK positional errors caused by rover receivers which are moving during data collection is
referred to as data ________. - correct answer ✔✔ latency
Kinematic surveys are _____ to PDOP spikes compared to Static GNSS surveys - correct answer
✔✔ more venerable
To start a kinematic survey receivers must be [i], which requires the integer ambiguity to be
resolved. - correct answer ✔✔ Initialized
The most common method to initialize a rover receiver today (using modern GNSS software) is
_______. - correct answer ✔✔
What are the three types of kinematic surveys? - correct answer ✔✔ post-process kinematic
real-time network
real-time kinematic
, Select areas of surveying where GNSS kinematic surveys can be employed. - correct answer ✔✔
mapping
construction
photogrammetry
What are commonalities between a static survey and a kinematic survey? - correct answer ✔✔
Two receivers, the base and the rover, are used.
Positioning computational procedures are similar.
Integer ambiguities need to be resolved before starting a survey
List six limiting factors in regards to the accuracies achievable in kinematic surveys. - correct
answer ✔✔ susceptibility to DOP spikes, atmospheric and ionospheric. refraction, multipathing,
and obstructions to satellite signals.
use of the broadcast ephemerides.
insignificant change in the satellite geometry during the session.
motion of the rover during data processing, causing data latency.
short length of the session.
lack of repeated observations.
How does an RTN survey mitigate some of a kinematics surveys limiting factors in accuracy ? -
correct answer ✔✔ An RTN survey mitigates some of the limiting factors by having corrections
determined using a network of physical base stations.
A storm front passes over the base station, which is 4 kmkm away from the rover. Why should
the GNSS survey be stopped until the same front passes over the rover? - correct answer ✔✔
Except when using real-time networks, the software used in kinematic surveys assumes that
both base and roving receivers are in the same --atmospheric conditions.--
