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Fig. 2.10 Photograph of the unmanned aerial vehicle (UAV) helicopter
“
Microwave Autonomous
Copter System
(MACS) equipped with a 6 cm radiometer, data acquisition system, GPS receiver
and power supply battery (Shutko et al. 2010)
”
Table 2.12 Characteristics of
the microwave autonomous
copter system (Krapivin ans
Shutko 2012)
Parameter
Value
Physical characteristics
Length
3.58 m
Weight
22.68 kg
Main blades
1.03 m
Engine
120 cc
Range
161 km
Payload capacity
20.41 kg
Fuel tank
32 oz
Passive sensor packages
Wavelengths
3, 6, or 21 cm
Sensitivity
0.3
-
0.5 K
3-db beam width
30
°
Power supply
27 V DC
Power consumption
15 VA
Weight
2
-
6kg
Others
Frequencies
1.4 or/and 5 GHz
Polarization
H or V
Antennas
Flat panels w/30
°
3-dB
Incidence angle range
Fixed angles 0
30
°
-
Sensitivity
0.5 K
Flight time
2 h
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