Operation OEM6 Cards and Enclosure
Chapter 4
OEM6 Family Installation and Operation User Manual Rev 7
51
4.3.4
PDP and GLIDE
™
Configurations
Pseudorange/Delta-Phase (PDP) and GLIDE position filters can be used for single-frequency single
point, WAAS or DGPS positioning. Refer to the
PDPFILTER
and
PDPMODE
commands in the
Family Firmware Reference Manual
(OM-20000129).
To reset the PDP or GLIDE
filter:
pdpfilter reset
To enable the PDP filter:
pdpfilter enable
Ensure the
PDPFILTER
command is used before the
PDPMODE
command. Set the PDP type and
kinematic type according to the application. For most kinematic applications:
pdpmode relative dynamic
or
pdpmode relative auto
The rest of the setup is position type and log dependant according to the application. For example,
details of the
RTKSOURCE
,
PSRDIFFSOURCE
,
INTERFACEMODE
,
SERIALCONFIG
and other
configuration commands are outlined in the
OEM6 Family Firmware Reference Manual
(OM-20000129).
Also refer to the NovAtel application note
APN-038 Pseudorange/Delta-Phase (PDP) and GLIDE
available from our web site (additional Application Notes available at
.
4.4
Steadyline
The Steadyline functionality helps mitigate the discontinuities that often occur when a GNSS receiver
changes positioning modes. The effect is especially evident when a receiver transitions from an RTK
position mode solution to a lower accuracy “fall back” solution, such as NovAtel CORRECT PPP, DGPS,
WAAS+GLIDE or even autonomous GLIDE. Smooth transitions are particularly important for agricultural
steering applications where sudden jumps are problematic.
The Steadyline feature internally monitors the position offsets between all the positioning modes present
in the receiver. When the current positioning mode becomes unavailable, the receiver transitions to the
next most accurate positioning mode.
The setting in the
STEADYLINE
command determines how the receiver transitions to the next positioning
mode. The following sections describe the Steadyline modes.
4.4.1
Maintain
When the receiver transitions to a different positioning mode, it maintains the position offset calculated to
limit a potential real position jump. The receiver continues to apply the position offset to all positions
calculated in the new positioning mode.
For more information about the
STEADYLINE
command, refer to the
(OM-20000129).
For more information about configuring and using the Steadyline feature, refer to the
Steadyline application note (APN-066) available on our website.
