Which of the following describes the basic ways missiles use RADAR?

• A. Beam Rider Missiles
• B. Homing Missiles
• C. Passive Homing Missiles
• D. All of the above

Answer: (D)

Radar guides missiles in several basic ways: beam riding uses a radar beam that is steered toward the target and the missile simply stays within that beam, following its direction to the target. Active radar homing means the missile carries a radar seeker that emits and also listens for reflections off the target, using that information to steer directly to the target. Passive radar guidance means the missile has receivers to pick up radar emissions from the target (or other emitters) and homes in on the source without emitting itself. Each approach relies on radar information to guide the intercept, just in different manners. Because all of these describe legitimate radar-based guidance methods, the correct choice is all of the above.