POS MV V4 User Guide
System Operation
Copyright © Applanix Corporation, 2009
5-28
o Uses the antenna separation to aid the OTF carrier phase
ambiguity search.
You can force GAMS to operate in this mode by clearing the GAMS
installation parameters and then entering an antenna separation
distance.
• If the surveyed antenna baseline vector components and the antenna
separation are non-zero and flagged as valid, then the GAMS OTF
algorithm uses the complete set of parameters to aid the OTF search
process.
If the POS MV roll and pitch errors are less than 0.25° RMS, GAMS
constrains the ambiguity search space to a circle centred on the
primary GNSS antenna (ANT 1). Ambiguity resolution in these
circumstances takes less than five minutes.
Additionally, if the POS MV heading error is of the order of 1.0° to 2.0°, then
the ambiguity is a small arc of the circle containing one or two candidate sets
of ambiguities. In these circumstances, ambiguity resolution is nearly
instantaneous and occurs in less than 10 seconds.
Stand-Alone Operation
Note: Prior to power-on and POS MV operation in stand-alone mode, the
AutoStart feature must be enabled. Refer
AutoStart on page 4-19 for
instructions on how to enable AutoStart. The following instructions assume
that you have enabled the AutoStart feature.
Follow the
Power-On instructions on page 4-1 to power-on the POS MV. The
system will initialize using the configuration parameters that it holds in NVM.
These include the IP address, the installation parameters, the output
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