What energy types are typically employed by active homing systems?

Active homing systems typically utilize radar and sonar as their primary energy types. Radar systems emit radio waves that can detect and locate objects by analyzing the reflected signals. This is particularly useful in aerial applications, where aircraft can track other airborne targets. Sonar, on the other hand, operates under similar principles but uses sound waves instead of radio waves. It is predominantly employed in underwater applications to detect submarines, ships, and other submerged objects.

These systems actively send out signals and then measure the responses, allowing them to track and target effectively. The selection of radar and sonar reflects the necessity to achieve detection in different environments—while radar is essential for aerial engagements, sonar is critical for naval contexts.

In contrast, infrared, visible light, and laser technologies may be utilized in various targeting or guidance systems, but they do not form the primary basis for active homing guidance like radar and sonar do. Therefore, the correct answer underscores the specific applications and operational environments of active homing technologies.