Ublox MIA-M10Q User Manual

MIA-M10Q-Integration manual
Figure 4: Flowchart of static hold mode
2.1.2.6 Freezing the course over ground
If the low-speed course over ground filter is deactivated or inactive (see section Low-speed course
over ground filter), the receiver derives the course over ground from the GNSS velocity information.
If the velocity cannot be calculated with sufficient accuracy (for example, with bad signals) or if
the absolute speed value is very low (under 0.1 m/s) then the course over ground value becomes
inaccurate too. In this case the course over ground value is frozen, that is, the previous value is kept
and its accuracy degrades over time. These frozen values will not be output in the NMEA messages
NMEA-RMC and NMEA-VTG unless the NMEA protocol is explicitly configured to do so (see NMEA
protocol configuration in the applicable interface description [3]).
UBX-21028173 - R01
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2 Receiver functionality Page 17 of 89
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Ublox MIA-M10Q Specifications

General

Brand	Ublox
Model	MIA-M10Q
Category	Control Unit
Language	English