What does 2D radar provide information about?

Two-dimensional (2D) radar systems primarily provide information about range and bearing. Range refers to the distance from the radar to the target, while bearing indicates the horizontal angle or direction of the target relative to a reference point, typically the location of the radar itself. This information is essential for tracking, navigating, and identifying the position of objects in a two-dimensional plane.

Understanding 2D radar involves recognizing its limitations, especially in contrast to 3D radar systems, which also provide altitude information in addition to range and bearing. In 2D radar applications, altitude is not measured, and therefore options that suggest either height or altitude are not applicable. In scenarios involving navigation or monitoring, speed and direction can be derived from the movement of targets but are not directly measured by 2D radar itself. Thus, the focus remains on providing effective situational awareness through range and bearing alone.