Which of the following types of radar is included in Terminal Surveillance Radar (TSR)?

The correct answer is that Terminal Surveillance Radar (TSR) includes both Primary Surveillance Radar (PSR) and Secondary Surveillance Radar (SSR). Terminal Surveillance Radar plays a crucial role in providing air traffic controllers with the necessary information for managing air traffic around airports.

Primary Surveillance Radar (PSR) operates by emitting radio waves and detecting the reflections off of aircraft. This allows PSR to determine the position of aircraft based solely on the returned signal, which is particularly useful for tracking non-transponder equipped aircraft.

Secondary Surveillance Radar (SSR), on the other hand, enhances surveillance capabilities significantly. It relies on the aircraft's transponder to provide not only positional information but also additional data such as altitude. SSR is more efficient in identifying and tracking aircraft because transponders provide specific responses upon interrogation from the ground radar.

By utilizing both types of radar, Terminal Surveillance Radar can effectively monitor the position and movements of aircraft, improving the safety and efficiency of air traffic operations in terminal airspace. Other options, while related to radar systems, do not encompass the full complementary functionalities of both PSR and SSR that define TSR.