DISPOSITIF DE RADAR POUR LA MESURE DE LA DISTANCE D QUI LE SEPARE D'UN REPONDEUR

摘要

An antenna (10) with a wide radiating pattern is connected to a duplexer (12) controlled from a pulse interrogation unit (36) to be connected to an hf power amplifier (15) or to the input of a mixer (17). A VCO (19,20) drives the amplifier and provides a signal for the mixer. The mixer output is amplified (30) and detected (32) and applied to a time measuring circuit (34) to determine the distance from a responder on the ground. The mixer output is also applied to a video amplifier (40) for detection (42). A second time measuring circuit (44) determines the height from the ground. The distance and height values are processed by a microprocessor (50) to determine the distance (d) over the ground to the interrogating responder.