$.$ For the same staggered PRF system of problem $7$: a$.$ What is the maximum unambiguous range, Rus, corresponding to the average PRI from problem $7?($This would be the unambiguous range of a constant PRI system that used the same amount of time to collect N pulses as the staggered PRF system.$)$ b$.$ For the three PRFs in problem $7,$ what is the minimum unambiguous range Rmin? Hint: this will be the shortest of the unambiguous ranges corresponding to the individual PRFs$.($This will be the unambiguous range of the staggered PRF system.$)$ c$.$ What is the factor by which the range coverage $($unambiguous range$)$ is reduced in the staggered PRF system $($part b$)$ relative to the unstaggered system $($part a$)?$ Compare this with the factor predicted by equation $(17\mathrm{.}15).$ d$.$ Compare the total unaliased range$-$Doppler coverage $($product of unambiguous range and velocity$)$ for the staggered and unstaggered cases.