Method, device, system, equipment and medium for determining performance of coherent transmitter

By performing noise search at the bit error rate threshold, the performance of coherent transmitters is evaluated, and the problem of inability to accurately deal with non-additive Gaussian white noise interference in the prior art is solved, and a more accurate performance evaluation of coherent transmitters is achieved.

CN119727902APending Publication Date: 2025-03-28HUAWEI TECH CO LTD
0 Cites 1 Cited by

Patent Information

Application Number
CN202410941831.2
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Priority Date
2023-09-28
Filing Date
2024-07-12
Publication Date
2025-03-28

AI Technical Summary

Technical Problem

When evaluating the performance of coherent transmitters, the prior art cannot accurately deal with interference caused by non-additive Gaussian white noise, resulting in inaccurate performance evaluation.

Method used

By acquiring the multiplexed digital signals carried by the dual polarized light signal, performing noise search, determining the power of additive Gaussian white noise added to the multiplexed digital signal under the bit error rate threshold, and comparing it with the noise power added to the ideal signal, thereby evaluating the performance of the coherent transmitter.

Benefits of technology

It improves the accuracy of coherent transmitter performance evaluation, can more effectively eliminate the noise impact on the front end of the coherent receiver, and provides more accurate performance evaluation results.

✦ Generated by Eureka AI based on patent content.
Patent Text Reader

Abstract

The invention provides a method, a device, a system, equipment and a medium for determining the performance of a coherent transmitter, and belongs to the technical field of coherent communication. The method comprises the following steps: acquiring multiple paths of digital signals carried by dual-polarized light signals from a coherent transmitter, and carrying out noise search according to the multiple paths of digital signals so as to obtain first power of additive white Gaussian noise added to the multiple paths of digital signals under an error rate threshold, and obtaining a first power of additive white Gaussian noise added to an ideal signal under a bit error rate threshold value, obtaining a second power of additive white Gaussian noise added to the ideal signal under the bit error rate threshold value, determining the performance of the coherent transmitter according to the first power and the second power, and determining the performance of the coherent transmitter according to the first power and the second power. According to the scheme, the performance of the coherent transmitter is measured based on the bit error rate as a constraint, and the performance of the coherent transmitter can be accurately measured.
Need to check novelty before this filing date? Find Prior Art