CALIBRATION DEVICE, CALIBRATION METHOD, CALIBRATION PROGRAM, REPEATING DEVICE, AND SATELLITE COMMUNICATION SYSTEM

摘要

A calibration device (2) is configured to include: a first antenna (36) that receives radio waves related to a transmission signal radiated from each of a plurality of transmission element antennas (23-1) to (23-M) belonging to a repeater (1) and that outputs a reception signal of the radio waves; and a second antenna (38) for radiating, towards a plurality of reception element antennas (11-1) to (11-K) belonging to the repeater (1), radio waves related to the reception signal output from the first antenna (36). The calibration device (2) is also configured to include: a signal superimposing unit (31) that detects a frequency unused by the repeater (1) from among frequencies in common with a plurality of frequencies that can be used by the repeater (1) as a transmission frequency of radio waves and frequencies that can be used by the repeater (1) as a reception frequency of radio waves, that generates a calibration signal having the unused frequency, and that superimposes the calibration signal on a transmission signal given to each of the plurality of transmission element antennas (23-1) to (23-M); and a calibration unit (39) that calibrates characteristics in each of the plurality of reception element antennas (11-1) to (11-K) by using the reception signal of radio waves received by each of the plurality of reception element antennas (11-1) to (11-K) and that calibrates characteristics in each of the plurality of transmission element antennas (23-1) to (23-M) by using a calibration signal included in the reception signal of radio waves received by each of the plurality of reception element antennas (11-1) to (11-K).