Question

21) The US Air Force is planning to attack an enemy facility using B-2 stealth bombers. Human intelligence suggests the enemy early warning radar has the following parameters: 5.6 GHz carrier signal, 1.5 MW peak power, 45 dB antenna gain, 290 K noise-effective temperature, and a 0.2 microsecond pulse length. The minimum SNR threshold for target detection is estimated to be 20 dB and the radar cross section for the B 2 is 0.1 m2. Find the range at which the B-2 is expected to first appear on the enemy radar.

Answer 1

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