The ability of RADAR to separate two targets close in range at approximately the same azimuth is defined as which term?

The correct term that defines the ability of RADAR to separate two targets that are close in range and approximately aligned in azimuth is range resolution. This capability is crucial in electronic warfare and RADAR operations, as it allows the system to distinguish between multiple objects that are very close to one another in distance.

Range resolution is fundamentally determined by the bandwidth of the RADAR signal. A broader bandwidth leads to a finer range resolution, enabling the RADAR to differentiate between two targets that are closely spaced in range. This is particularly important in complex environments where multiple targets may be present, and accurate identification is necessary for effective monitoring and decision-making.

In contrast, the other terms mentioned do not specifically address the ability to resolve targets in close proximity. Maximum unambiguous range refers to the maximum distance from which a RADAR can accurately determine the range of a target before ambiguity arises due to time delays. Maximum detection range is the furthest distance at which a RADAR can detect a target under specified conditions but does not relate directly to resolving closely spaced targets. Range definition generally pertains to how well a system can define the distance to a target, rather than the ability to separate close targets.