The attached diagram indicates the challenge of resolving ra

The attached diagram indicates the challenge of resolving range and velocity ambiguities in radar systems. What radar system attribute would provide a viable design solution to this challenge?

A. Frequency agility

B. Antenna beam steering agility

C. PRF/PRI agility

A. Frequency agility
B. Antenna beam steering agility
C. PRF/PRI agility
D. Pulse width agility

10000 Range Amblgulty Doppler Amblgulty Ambiguous Range Ambiguous Doppler 5000 200 Unambiguous Range Unambiguous Doppler 100 100 200 300 0 PF(hHz) 10 20 PRF (kHz) 400 10000 Ambiguous Range & Doppler Unambiguous Range Unambiguous Doppler PRF (kHz) 300 Figure 4.14 Areas prone to range and Doppler ambiguity

Solution

(B) Beam steering agility

because both beam steering agility and polarization agility can be combined to achieve reduced delay line size further and the antenna can be operated at 60GHz for indoor applications such as WLANs.......