| 摘要 |
PROBLEM TO BE SOLVED: To realize frequency conversion stably with high accuracy by flexibly tracking a secular change and an environment condition without causing a configuration to become greatly complicated or costs to increase pertaining to a frequency deviation suppression support device for correcting an error in a local oscillation frequency which is the cause of the frequency deviation of a transmission wave generated by frequency conversion in a transmission system having a wraparound path.SOLUTION: The present invention comprises: power acquisition means for obtaining power being distributed in a specific band including the frequency of a carrier of a wraparound wave on a frequency axis among the band of an associated wave constituted by superposing, on a first signal, a wraparound wave of a second signal generated by the frequency conversion of the first signal; local oscillation control means for updating the frequency of the local oscillation signal presented to the frequency conversion in a direction in which disparity in the distribution of the power on the frequency axis decreases. |
