For the radar described in Problem 3.2, assume the minimum detectable signal is 5 d B m 5 d B m . Compute the radar

For the radar described in Problem 3.2, assume the minimum detectable signal is $5dBm$. Compute the radar maximum range for $\sigma =1.0,10.0,20.0m^2$.

Data From Problem 3.2

An L-band radar \((1500 \mathrm{MHz})\) uses an antenna whose gain is \(G=30 \mathrm{~dB}\). Compute the aperture size. If the radar duty cycle is \(d_{t}=0.2\) and the average power is \(25 \mathrm{~kW}\), compute the power density at range \(R=50 \mathrm{~km}\).