OPTICAL TRANSMISSION CHARACTERISTIC ESTIMATION METHOD, OPTICAL TRANSMISSION CHARACTERISTIC COMPENSATION METHOD, OPTICAL TRANSMISSION CHARACTERISTIC ESTIMATION SYSTEM, AND OPTICAL TRANSMISSION CHARACTERISTIC COMPENSATION SYSTEM

摘要

The present invention estimates a transfer function or an inverse transfer function of a transmission unit (9a) of a first optical transmitter/receiver (9) from first data acquired by a second optical transmitter/receiver (16) when a first known signal is transmitted from the first optical transmitter/receiver (9) to the second optical transmitter/receiver (16) and from a preliminary transfer function or inverse transfer function of a reception unit (16b) of the second optical transmitter/receiver (16). The estimated transfer function or inverse transfer function of the transmission unit (9a) of the first optical transmitter/receiver (9) is transmitted from the second optical transmitter/receiver (16) to the first optical transmitter/receiver (9). A transfer function or an inverse transfer function of the reception unit (16b) of the second optical transmitter/receiver (16) is estimated from second data acquired by the second optical transmitter/receiver (16) when a second known signal is transmitted from the first optical transmitter/receiver (9) to the second optical transmitter/receiver (16), the second known signal having been compensated according to the transmitted transfer function or inverse transfer function of the transmission unit (9a) of the first optical transmitter/receiver (9).