PHASED-ARRAY ANTENNA RADAR AND TRANSMITTING CHIRP SIGNAL ACQUISITION METHOD FOR CALIBRATION

摘要

PPROBLEM TO BE SOLVED: To provide a means for enabling recording of a transmitting chirp signal used as a compression reference function of a receiving signal by covering the whole radar at sufficient precision. PSOLUTION: A phased-array antenna radar comprises branching a part of the transmitting chirp signal during a phase shift and an amplified observation mode with a branching filter 128 by a transmitting phase shifter 1211 and a transmitting amplifier 123 in each transmitting and receiving module 12 of a phased array antenna 1, passing a receiving amplifier 127 and a receiving phase shifter 1212 in the transmitting and receiving module 12 to be looped back, performing data processing by receiving the looped-back transmitting chirp signal and being recorded in a data recorder 25 as a calibration chirp signal. PCOPYRIGHT: (C)2006,JPO&NCIPI