Novatel OEM7 - Glide; Dual-Frequency GLIDE; PDP and GLIDE Configurations

Chapter 3 OEM7 Receiver Operation
OEM7 Installation and Operation User Manual v1 49
movingbasestation enable
log com2 novatelxobs ontime 1
log com2 novatelxref ontime 1
log headinga onnew
log gphdt onnew
Rover:
serialconfig com2 9600 N 8 1 N on
interfacemode com2 novatelxnovatel off
log com2 headingext2b onnew
log headinga onnew
log gphdt onnew
hdtoutthreshold 1.0
3.6 GLIDE
NovAtel’s GLIDE™ is a positioning algorithm for single-frequency GPS and GPS/GLONASS applic-
ations. GLIDE produces a smooth position output tuned for applications where time relative
accuracy (pass-to-pass) is more important than absolute accuracy. Because of this, it is well
suited for agricultural applications.
Multipath signals tend to induce time varying biases and increase the measurement noise on the
L1/L2 pseudorange measurements. Carrier phase measurements are much less susceptible to
the effects of multipath. The GLIDE algorithm fuses the information from the L1 code and the L1
phase measurements into a Position Time Velocity (PVT) solution.
GLIDE includes settings for a dynamic mode, a static mode and an “auto” mode, where the fil-
tering parameters are automatically adjusted as vehicle velocity varies between stationary and
dynamic states.
3.6.1 Dual-Frequency GLIDE
NovAtel’s dual-frequency GLIDE technology adds to the superior pass-to-pass performance
provided by single-frequency GLIDE. Dual-frequency GLIDE is ideal for agricultural and machine
guidance applications where relative positioning is critical. Using GLIDE significantly reduces the
variation in position errors to less than 1 cm from one epoch to the next. Dual-frequency GLIDE
improves the absolute accuracy of the GLIDE position and creates a robust solution resistant to
the effects of high ionospheric activity. GLIDE works in all code positioning modes, including
single point, DGNSS, SBAS and L-Band.
Refer to the NovAtel white paper on GLIDE Technology for more information on GLIDE and APN-
038 Pseudorange/Delta-Phase (PDP) and GLIDE Filters along with other information available
from www.novatel.com/support/search/.
3.6.2 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 command and PDPMODE
command in the OEM7 Commands and Logs Reference Manual (OM-20000169).