An ultra-wideband optical fiber communication full-order polarization mode dispersion optimal subcarrier division method
By combining the joint probability distribution of polarization mode dispersion and DSP algorithm parameters in optical fiber communication systems, the boundary between broadband and narrowband systems is determined, the number of digital subcarriers is optimized, the problem of PMD compensation under high baud rate and large bandwidth is solved, the complexity of DSP is reduced, and the system reliability is improved.
CN122419616APending Publication Date: 2026-07-17BEIJING UNIV OF POSTS & TELECOMM
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Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- BEIJING UNIV OF POSTS & TELECOMM
- Filing Date
- 2026-04-24
- Publication Date
- 2026-07-17
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Figure CN122419616A_ABST
Abstract
本发明公开了一种超宽带光纤通信全阶偏振模色散最优子载波划分方法，包括：结合偏振模色散联合概率分布确定宽带系统与窄带系统的划分界限；在给定目标置信度下，基于宽带系统与窄带系统的划分界限建立宽带系统与窄带系统中归一化偏振模色散与数字信号处理算法参数之间的半解析关系；针对不同传输场景，基于归一化偏振模色散与数字信号处理算法参数之间的半解析关系，得到最优数字子载波划分的半解析表达式；根据最优数字子载波划分的半解析表达式得到最优数字子载波个数。本发明在保证系统传输性能与可靠性的同时，显著降低了DSP计算复杂度，实现了系统性能与均衡复杂度之间的平衡。
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