Patent ID: 11901953
Assignee: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
Field: Telecommunications (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. An optical transmission system that includes an optical transmission apparatus and an optical reception apparatus, the optical transmission system comprising:
a coefficient determination unit configured to optimize, based on a reception signal received by the optical reception apparatus, a coefficient to be used to compensate for deterioration according to characteristics of each device and thereby configuring a transmission path between the optical transmission apparatus and the optical reception apparatus; and
a device characteristic estimation unit configured to estimate the characteristics of each device by using the optimized coefficient, wherein when the coefficient determination unit is provided in the optical reception apparatus, the coefficient determination unit estimates, for each device configuring the transmission path, an inverse characteristic response model of linear response and nonlinear response based on the reception signal, and optimizes the coefficient so that an evaluation function relating to an output signal obtained by using the inverse characteristic response model and the reception signal becomes equal to or greater than a predetermined threshold.