Which type of missile guidance system is defined by its continuous tracking and adjustments made during flight?

The type of missile guidance system characterized by continuous tracking and the ability to make adjustments during flight is known as active guidance. This system involves the missile itself actively seeking and tracking its target throughout its flight path, utilizing onboard sensors to detect target signatures and make real-time adjustments to ensure accuracy. Active guidance can include methods such as radar or infrared homing, where the missile actively engages with target data during its trajectory.

In contrast, other guidance systems like inertial guidance operate based on pre-defined algorithms and do not incorporate real-time tracking of the target. Feedback guidance typically refers to systems that rely on external signals for correction but do not necessarily maintain continuous tracking during the entire flight. Command guidance relies on signals sent from an external source, like a ground control station, to guide the missile in real-time but does so without the missile's onboard tracking capability. Therefore, active guidance stands out due to its continuous, autonomous tracking and capability to adjust course dynamically throughout its flight.