How is the accuracy of guided weapons typically assessed?

The accuracy of guided weapons is typically assessed in terms of circular error probable (CEP). CEP is a statistical measure that indicates the radius of a circle, centered on the target, within which a specified percentage of the projectiles are expected to fall. This metric is crucial for evaluating the precision of guided munitions, as it provides a clear and quantifiable way to understand how closely the weapon can strike the intended target. A smaller CEP value indicates higher accuracy, which is vital for military operations where precision is essential to minimize collateral damage and achieve mission success.

The other options do not provide a direct or reliable measure of accuracy. The distance a weapon can travel does not inform us about its precision relative to a target. The time taken to reach a target relates more to speed and trajectory rather than precision of impact. Lastly, the type of guidance system used can affect accuracy; however, it is not a direct measurement of that accuracy itself. Thus, CEP remains the standard assessment measure for understanding the effectiveness of guided weapons.