Section 5—General Theory of Operation
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5.2
speed (120 - 55 = 65). The PATROL display would
indicate 55 and the TARGET display would indicate 65.
In the Moving Same Direction mode of operation, the target
Doppler is received from a target traveling in the same
direction as the patrol vehicle. These "groundspeed"
Doppler and the "difference" Doppler signals are received
and sent to the DSP. The Difference Doppler is the speed
difference between the patrol vehicle and a vehicle traveling
in the same direction. The Directional Golden Eagle II uses
its directional determination capabilities to automatically
determine if the target vehicle is traveling faster or slower
than the patrol vehicle. The unit will display the patrol
speed then automatically add or subtract the "difference"
speed to the patrol speed for the target speed.
If the patrol vehicle's speed was 55 mph and a target was
traveling in the same direction at 70 mph, the Directional
Golden Eagle II would display 55 in the PATROL display
then add the "difference” Doppler signal 15 to the PATROL
display (55 + 15 = 70) and display 70 in the TARGET
window.
