M12 Oncore Users Guide Supplement - deetc - isel
M12 Oncore Users Guide Supplement - deetc - isel
M12 Oncore Users Guide Supplement - deetc - isel
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Motorola GPS Products<br />
<strong>M12</strong> <strong>Oncore</strong> User’s <strong>Guide</strong> <strong>Supplement</strong><br />
Revision 1.0 01/25/00<br />
VELOCITY FILTER<br />
The Velocity Filter command controls the velocity filtering feature. The velocity filter<br />
is useful in marine applications to filter out some of the wave motion in the reported<br />
velocity.<br />
The filter is a single order alpha filter, where alpha is the value entered by the user<br />
ranging from 10 to 100 in increments of one. Alpha is then used in the filtered<br />
velocity solution representing 10% to 100% of the last calculated velocity, the<br />
remainder of which uses the previously reported velocity. If a value of 10 is entered<br />
for alpha, the maximum filtering will be done. An alpha value this low must be used<br />
with caution; the reported velocity will have extreme latency. An alpha value of 100<br />
will result in no filtering, which is the default alpha value.<br />
Default value: 100<br />
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