The invention discloses a multi-target measurement and control communication
antenna array optical fiber closed-loop calibration method, and aims to solve the problems of
multiple antenna error
calibration test parameters, inconsistency of receiving channels including antenna unit mutual
coupling and large test quantity. The method provided by the technical scheme of the invention comprises the steps that a calibration
signal generation unit generates receiving and transmitting calibration
baseband signals based on a starting instruction; the receiving calibration
baseband signal is subjectedto up-conversion to a
radio frequency through the calibration
frequency conversion unit, is transmitted to optical
transmission equipment, is transmitted to the optical receiving / transmitting module of an antenna subarray through an
optical fiber, is coupled to each receiving channel, and is transmitted to an amplitude-phase consistency measurement unit through the
optical fiber after being processed, so that closed-loop calibration of receiving channels is realized; the transmitting calibration
baseband signal is output to a receiving / transmitting calibration switch network through a switch network and a coupler and transmitted to rear-end optical
transmission equipment; and the transmitting calibration baseband signal is obtained through
down conversion and transmitted to the amplitude-phase consistency measurement unit, and closed-loop calibration of transmitting channels is achieved.