What is the primary detection capability of 3D radar?

The primary detection capability of 3D radar is the ability to determine range, bearing, and altitude. This advanced capability allows 3D radar systems to provide a more comprehensive view of targets in space compared to 2D radar systems, which typically only measure range and bearing.

Having the capability to detect altitude is particularly important in various applications such as air traffic control, military operations, and meteorology. By knowing the altitude of an object in addition to its distance and direction, operators can effectively track and manage air traffic, conduct surveillance, and assess the environment for weather patterns. This three-dimensional awareness is crucial for decision-making and operational effectiveness in contexts where altitude plays a critical role, such as differentiating between multiple aircraft flying at different elevations or assessing potential threats.

In contrast, the other choices fail to capture the complete functionality of 3D radar systems. These systems are designed to provide a full three-dimensional picture rather than being limited to just specific aspects such as only altitude or solely surface movement detection.