阶段优化方法用于控制二级单子基NFDM系统中的高峰到平均功率比
Applied optics
|August 12, 2025
概括
本研究引入了相位预等值,以减少非线性频率分割复杂化 (NFDM) 系统中的高峰与平均功率比 (PAPR). 这种技术可以提高光纤通信中的数据速率和传输距离.
科学领域:
- 光学通信是指光学通信.
- 信号处理 信号处理
- 非线性光学是非线性光学.
背景情况:
- 光纤通信由于光纤非线性而面临容量限制.
- 非线性频率分割复杂化 (NFDM) 是一种解决方案,但由于多个单元周期性,它存在高峰与平均功率比 (PAPR).
- 高的PAPR会对NFDM中的系统性能产生负面影响.
研究的目的:
- 提出一种新的阶段预等级技术,以减轻NFDM系统中高的PAPR.
- 为了共同优化发射器和接收器参数,减少PAPR利率.
- 为了提高错误性能和系统对干扰的稳定性.
主要方法:
- 使用最佳相位因子实施相位预等值.
- 在NFDM系统模型中,发射器和接收器的联合优化.
- 在各种调制方案 (8-QAM,16-QAM) 下进行预等式的系统性能分析.
主要成果:
- 阶段预等值有效地减少了接收器上的PAPR.
- 在1000公里内实现了24Gbps (8-QAM) 和24.67Gbps (16-QAM) 的数据速率.
- 将最大传输距离扩展到2150公里,速度为10 Gbps.
- 证明了更好的错误性能和降低对干扰的敏感性.
结论:
- 阶段预等值是减少NFDM系统中PAPR的有效方法.
- 拟议的技术可以提高光纤通信中的数据速率和传输距离.
- 具有预等级的NFDM系统表现出更好的稳定性和性能.
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