Smi: Code Measurement Smoothing - ashtech DG16 Reference Manual

SMI: Code Measurement Smoothing

$PASHS,SMI,d1,d2
Set the interval in seconds of code measurements smoothing, which reduces the
effect of noise, where d is the smoothing interval in seconds ranging from 0 to 1200,
and d2 is the order of smoothing, 1 or 2.If d2 is omitted, then the DG16 assumes
first order of smoothing. This smoothing setting is independent of the internal
receiver update interval.
If d2 = 1, then the maximum value for d1 is 100. If d2 = 2, then the maximum value
for d1 is 1200.
The smoothing correction is provided in the MCA/MBN message along with the
smoothing count. If the internal smoothing count is greater than 255, then the
smoothing count in the MCA/MBN is set to 255.
Example
Enter the following command to set code measurement smoothing to 100 seconds.
$PASHS,SMI,100
SMI
$PASHQ,SMI,[c1]
The associated query command is $PASHQ,SMI,[c1], where c1 is the optional
output port.
$PASHR,SMI
The response message is in the form:
$PASHR,SMI,d1,d2*cc
where d1 is the smoothing interval in seconds, and d2 is the order of smoothing (1
or 2).
SMV: Speed Filtering
$PASHS,SMV,d
This command sets the interval of speed filtering for the receiver velocity, which
reduces the noise effects on speed, where d is the interval ranging from 0 to 99
seconds. A filter interval of 0 seconds indicates no filtering.
Receiver Commands
DEFAULT SETTING
Smoothing Interval 100 second
Order of Smoothing 1
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