ADAPTIVE ARRAY RETRODIRECTIVE LANDING CONTROL RESPONSER

摘要

A landing control system normally quiescent but responsive to pulsed interrogation from an aircraft to be given (typically) elevation and azimuth angle information for landing approach. The ground responser equipment determines the angle of arrival of the interrogation pulses through an adaptive phased array arrangement and retransmits that information as a coded reply. Range information is air derived through the measurement of time delay in receiving the coded responser reply corresponding to each interrogation.