Question: Let the maximum unambiguous range for a low PRF radar be (R_{max }). (a) Calculate the SNR at (1/2) (R_{max }) and (3/4) (R_{max }).

Let the maximum unambiguous range for a low PRF radar be $R_{\max }$. (a) Calculate the SNR at (1/2) $R_{\max }$ and (3/4) $R_{\max }$. (b) If a target with $\sigma=10 \mathrm{~m}^{2}$ exists at $R=(1 / 2)$ $R_{\max }$, what should the target RCS be at $R=(3 / 4) R_{\max }$ so that the radar has the same signal strength from both targets?

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