Receiver Commands 127
Receiver Commands
The DG16 does not calculate ionospheric parameters on its own. The ionospheric data, listed in
Table 6.27, are obtained from subframe 4 of the GPS navigation message.
KFP: Kalman Filter
$PASHS,KFP,s1
This command enables the Kalman filter where s1 is ON or OFF. If you issue this
command again, it will reset the Kalman filter.
The Kalman filter supports a known point initialization.
Example
Enter the following command to enable the Kalman filter.
$PASHS,KFP,ON
$PASHQ,KFP,[c1]
This command queries the Kalman filter parameter setting (ON or OFF) where c1
is the optional port designator for the output of the response. If a port is not specified,
the receiver sends the response to the current port.
The response is in the readable format below:
KFP SETUP:
MODE:OFF PRI:O10.0 FDE:99.0 PAR:001.00,001.00
unsigned long 4 tow Current time of week
short 2 bulwn Current GPS week number when message was
read
unsigned long 4 bultow Time of week when message was read
short 2 Checksum (word)
Total characters = 76 bytes
DEFAULT SETTING
KFP—OFF
Table 6.27. $PASHR,ION Format (Continued)
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