Installation Guide

AIMS Fast-Scan Radar v3.22 Installation and Operations Manual
DMT, LLC • DMT-M200-311 • 08/2009
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be reduced to 30% of its current value. Linear Ramp in Range means the reduction is applied
over a linear slope from 0 to Ramp Percent, which the above example is 30%. This linear slope is
applied over the Beginning Ranges to Ending Ranges. Step Ramp in Range means the reduction
is an equal percentage over the entire range swath defined (Beginning Range to Ending Range).
5.3.4.2 Clutter X
Main Lobe Removal (also referred to as Clutter X or clutter notch) allows for the removal of
nuisance alarms around zero Doppler (very slow or non moving objects) by setting all values in
and around 0 Hertz to the Mainlobe Value. Clutter X is very useful for removing the response
from swaying trees, moving water, or windblown heavy brush. Setting Clutter X too high can
reduce the ability of detecting walking humans.
The Main Lobe Removal options include;
• Remove Mainlobe. Enables the main lobe removal.
• Mainlobe Half-Width. The Mainlobe Half-Width represents the number of Doppler bins
(frequency slices) around 0 Hertz that are set. “0” in this text box equals to 0 Hertz only.
“1” in this text box represents one Doppler bin on either side of 0 Hertz is set. Commonly
set values are 0 to 2.
• Mainlobe Value. Appropriate settings for the Mainlobe Value are usually 0 or negative
numbers. (Note: A negative number lowers the plotted color of the notch to black and
thereby, is easier to see when looking at Doppler Plot). However, this value should be set
to zero when Autolobe is being used.