An aspect of the control system that can make minor or large corrections relative to the flight path of the target is said to have

• A. Proportional Navigation
• B. Autopilot
• C. PID Control
• D. Proportional-Integral-Derivative

Answer: (A)

Proportional Navigation is a guidance approach where the control system makes corrections based on how quickly the line of sight to the target is changing. The commanded steering or lateral acceleration is proportional to the line-of-sight rate, so small LOS changes produce small corrections and rapid LOS changes (from target maneuvering) produce larger corrections. This lets the system adjust its flight path relative to the target’s trajectory, aiming to intercept by continuously steering in proportion to how the target appears to move from the pursuer’s point of view. While autopilot or PID-based loops can produce a range of corrections, Proportional Navigation specifically ties the adjustment to the target’s changing line of sight, making it the best description of the scenario.