Menghitung sebuah Radar (Tugas dan Contoh Soal)
TUGAS 1
Berikut adalah spesifikasi dari sebuah Radar :
1.
Transmit power : 5.000.000 watt
2.
Antenna Gain : 5000
3.
Antenna effective aperture : 20 m2
4.
Transmit frequency : 1,27 GHz
5.
Transmit pulse width : 2,5 uS
6.
Pulse Repetition Frequency (PRF) : 350 pps atau
350 Hz
7.
Receive noise factor : 2,5
Spesifikasi target :
1.
Radar cross sectional (RCS) : 15 m2
2.
Range from Radar : 250 nmi ( 1 nmi = 1852 m)
Hitung :
a. The average power transmitting by the
radar
Jawab :
b. The radar’s effective radiated power
Jawab :
ERP=P_T G_T
= 5.000.000 watt . 5000
= 25.000.000.000
Watt
c. The forward power density at the target
Jawab :
d. The effective power raflected by the
target
Jawab :
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