Surface motion radar used on airfields typically operates in the L-band frequency range. This frequency band, which extends from 1 to 2 GHz, is well suited for surface radar applications due to its ability to effectively penetrate various weather conditions while providing precise detection and tracking of ground objects, such as aircraft and vehicles.
The frequency band of surface motion radar is generally in the L band (1-2 GHz) of the electromagnetic spectrum.
This frequency choice is optimized for the specific requirements of detecting and tracking objects on airport surfaces, ensuring reliable operation in different weather conditions and environments commonly encountered in airfield settings.
Airport radar systems, including primary and secondary surveillance radar (PSR and SSR), typically operate at specific frequencies in the S-band (2-4 GHz) for primary radar and L-band (1-2 GHz). ) for the secondary radar.
These frequency bands are chosen based on their performance characteristics, including range, precision and the ability to handle interference, which are essential for air traffic control and management operations.
Airports use various radar systems depending on their operational needs. Primary surveillance radar (PSR) is used to detect and track the position of aircraft based on the reflection of radio waves from the aircraft itself.
The secondary surveillance radar (SSR) works in conjunction with the PSR by transmitting signals to aircraft and receiving responses (transponder signals) from aircraft, providing additional information such as aircraft identification, altitude and flight status.
The rotation speed of surface motion radar, which scans the area to detect and track objects on the ground, such as aircraft and vehicles, typically ranges from about 5 to 15 revolutions per minute (rpm).
This rotation speed ensures that the radar antenna scans the designated area at a sufficient rate to provide timely updates on the position, speed and movement of objects on the airport surface, assisting with protocols effective traffic management and security