Method and device for controlling phase difference between channels of multi-channel radio frequency optical transmission product

Abstract

The invention discloses an inter-channel phase difference control method, device and equipment for a multi-channel radio frequency optical transmission product and a storage medium, and the method comprises the steps: determining a channel phase difference between a reference channel and a test channel, and determining a channel length difference between the reference channel and the test channel according to the channel phase difference; the method comprises the following steps: acquiring a system error value of actual length change and test length change during a plurality of optical fiber length changes, obtaining a system error accurate value, further determining a to-be-pruned length value of a test channel, and driving inter-channel phase difference control equipment to execute a length pruning task on an optical fiber corresponding to the test channel according to the to-be-pruned length value. Therefore, the trimmed test channel meets the requirement of phase difference between optical transmission product channels. According to the invention, the control requirement of the phase difference between the channels of a multi-channel radio frequency optical transmission product simultaneously comprising an optical link and a radio frequency link in a signal link is met, the product assembly complexity is reduced, the assembly time is shortened, and the control precision of the phase difference between the channels is improved.

Description

technical field [0001] The invention relates to the technical field of optical carrier radio frequency, and in particular, to a method, device, equipment and storage medium for controlling the phase difference between channels of a multi-channel radio frequency optical transmission product. Background technique [0002] The multi-channel RF optical product is a method of modulating multiple broadband RF signals onto each optical signal to achieve large bandwidth, low loss and long-distance transmission of multiple RF signals. In the optical control array system, there are requirements for the phase difference between channels of multi-channel RF optical products. In theory, the requirements for the phase difference between channels can be achieved by changing the length of the RF cable or the length of the optical fiber of the signal link. [0003] Compared with controlling the length of the RF cable, controlling the length of the optical fiber has the following advantages: ...

AI Technical Summary

Problems solved by technology

[0005] The main purpose of the present invention is to provide a method, device, equipment and storage medium for controlling the phase difference between channels of multi-channel radio frequency optical transmission products, aiming at solving the technical problem that the phase difference control accuracy between channels of multi-channel radio frequency optical transmission products is not high

Images