In reference to Figure 4.18, assume a radar height of (h_{r}=100 mathrm{~m}) and a target height of

Question:

In reference to Figure 4.18, assume a radar height of $h_{r}=100 \mathrm{~m}$ and a target height of $h_{t}=500 \mathrm{~m}$. The range is $R=20 \mathrm{~km}$. (a) Calculate the lengths of the direct and indirect paths. (b) Calculate how long it will take a pulse to reach the target via the direct and indirect paths.

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