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Publication of DE1249705BpublicationCriticalpatent/DE1249705B/de
G08G5/20—Arrangements for acquiring, generating, sharing or displaying traffic information
G08G5/22—Arrangements for acquiring, generating, sharing or displaying traffic information located on the ground
G—PHYSICS
G01—MEASURING; TESTING
G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
G01S13/88—Radar or analogous systems specially adapted for specific applications
G01S13/91—Radar or analogous systems specially adapted for specific applications for traffic control
G01S13/913—Radar or analogous systems specially adapted for specific applications for traffic control for landing purposes
G—PHYSICS
G08—SIGNALLING
G08G—TRAFFIC CONTROL SYSTEMS
G08G5/00—Traffic control systems for aircraft
G08G5/50—Navigation or guidance aids
G08G5/56—Navigation or guidance aids for two or more aircraft