The requirements and testing necessary for the design of a ground traffic control system are addressed. Work is focused on the following: construction of a planning, monitoring, and guidance system for ground traffic on the airfield; construction of a system for detection of any obstacles and of the state vector of the targets (traffic units) on the airfield; and construction of a communication system for air to ground and ground to air data links. The requirements for target state vector determination are as follows: location accuracy 5 m; velocity accuracy 0.5 m/s; heading accuracy 5 deg; minimum measurement rate 1/sec; and individual identification. Requirements for digital communication are as follows: data exchange between airborne and ground systems; transmission of guidance information to the pilot; uplink capacity 400 bit/s per traffic unit; and downlink capacity 300 bit/s per traffic unit. The following candidate elements are considered as supplementary elements for location: the differential multialteration method (hyperbola navigation; based on SSR mode S or DME (Distance Measuring Equipment) basic systems); the differential GPS (Global Positioning System); and a composite system of coherent pulsed dislocated radar elements with fixed antenna (noncooperative system).


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