1 Describe the noise factor and how it affects the detection range and received signalto- noise ratio. 2 Find the maximum detection range for a target with a radar cross section of 10 dBsm. The radar...

1 Describe the noise factor and how it affects the detection range and received signalto- noise ratio.

2 Find the maximum detection range for a target with a radar cross section of 10 dBsm. The radar system has a bandwidth of 20 MHz, noise figure of 6 dB, losses of 4 dB, antenna gain of 20 dB, transmits a peak power of 50 kW, and operates at a frequency of 1 GHz. Assume the system temperature is 380o K.

3 For the scenario given in Problem 4.9, calculate the output signal-to-noise ratio when the target is at a range of 10 km.