a) A monostatic radar is operating at f= 3 GHz with a transmit power of P₁ = 100 kW and an antenna gain of G = 1000. The noise power is N = 2 pW and the loss factor of the system is L, = 0.5. The detection threshold of this radar's processor is (SNR) det = +9 dB. What is the minimum radar cross-section (RCS) in dBsm of a reflector that can be detected at a range of R = 10 km.
a) A monostatic radar is operating at f= 3 GHz with a transmit power of P₁ = 100 kW and an antenna gain of G = 1000. The noise power is N = 2 pW and the loss factor of the system is L, = 0.5. The detection threshold of this radar's processor is (SNR) det = +9 dB. What is the minimum radar cross-section (RCS) in dBsm of a reflector that can be detected at a range of R = 10 km.
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I’m struggling with question 5 a b c d
Transcribed Image Text:5. a) A monostatic radar is operating at f. = 3 GHz with a transmit power of
P₁ = 100 kW and an antenna gain of G = 1000. The noise power is
N = 2 pW and the loss factor of the system is Ls = 0.5. The detection
threshold of this radar's processor is (SNR) det = +9 dB. What is the
minimum radar cross-section (RCS) in dBsm of a reflector that can be
detected at a range of R = 10 km.
b) Explain the main scattering processes that contribute to the radar cross-section
(RCS) of an airframe.
c) Describe the elements of Global Navigation Satellite Systems (GNSS), e.g. the
Global Positioning System (GPS), and briefly explain how receivers locate
themselves.
d) An electro-optic system has a field of view of 60° x 60° and has a
2048 x 2048 focal plane array. Find the range at which the critical dimension
of 25 metres of an aircraft covers 100 pixels.
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