Patent ID: 11888532
Assignee: MITSUBISHI ELECTRIC CORPORATION
Field: Telecommunications (Electrical engineering)
Classification: CPC H | IPC H

Claim 1:
2. A signal processing method for processing reception signals of optical signals received by a receiver when the optical signals transmitted from a transmitter are propagated to the receiver via a plurality of paths, the signal processing method comprising:
calculating signal-to-noise ratios of the optical signals that have been propagated through the respective paths, the signal-to-noise ratios being based on propagation distances of the optical signals in the respective paths, intensities of the optical signals transmitted from the transmitter, and intensities of noise with respect to the optical signals transmitted from the transmitter;
adjusting amplitudes of the reception signals of the optical signals that have been propagated through the respective paths, using the corresponding signal-to-noise ratios calculated; and
combining the reception signals whose amplitudes have been adjusted.