The ADS-B system station receives and processes the ADS-B signal broadcasted by aircrafts or operation vehicles in real time. Extracts target surveillance information through decoding, error correction and related tracking processing, which include identification information (Mode A, 24-bit address code, call sign ID), location (latitude, longitude, altitude), speed and intention information, etc. And provides high precision real time information services for the surveillance and management operations of controllers and airlines.

The MLAT system uses the time difference of arrival (TDOA) of the signal received by the base station to realize accurate, reliable and real time positioning (latitude, longitude, altitude) and identification (Mode A, 24-bit address code, call sign ID) of aircrafts, operation vehicles or other targets with mode A/C/S signal transmission capabilities. And provides high precision real time information services for the surveillance and management operations of controllers and airlines.