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相关概念视频

Time and frequency -Domain Interpretation of Phase-lag Control01:21

Time and frequency -Domain Interpretation of Phase-lag Control

86
Phase-lag controllers are widely used in control systems to improve stability and reduce steady-state errors. A dimmer switch controlling the brightness of a light bulb serves as a practical example of phase-lag control, gradually adjusting the bulb's brightness. Mathematically, phase-lag control or low-pass filtering is represented when the factor 'a' is less than 1.
Phase-lag controllers do not place a pole at zero, but instead influence the steady-state error by amplifying any...
86

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在光子学辅助的毫米波系统中,基于卡尔曼过的决策值动态优化.

Tianqi Zheng, Kaihui Wang, Sheng Hu

    Optics letters
    |November 27, 2024
    PubMed
    概括

    我们介绍了一种基于卡尔曼波器的新方法,用于优化光子辅助W频系统的决策值. 这种方法通过减轻非线性效应和扭曲,显著提高了比特错误率 (BER) 的性能.

    科学领域:

    • 光子学是指光子学的使用方法.
    • 光学通信是指光学通信.
    • 信号处理 信号处理

    背景情况:

    • 像时间域动和和扭曲等非线性效应会降低光通信系统的比特错误率 (BER) 性能.
    • 现有的BER优化方法通常涉及复杂的算法或缺乏动态跟踪功能.

    研究的目的:

    • 提出和验证一种新的决策值动态优化 (DTDO) 方法,以减轻光子辅助的W频段毫米波系统中的非线性效应.
    • 为了提高通过W频段链路传输的四级脉冲振幅调制 (PAM4) 信号的比特错误率 (BER) 性能.

    主要方法:

    • 一种基于卡尔曼过的DTDO方法被开发出来,以动态优化决策值.
    • 该DTDO方法在使用PAM4信号的光子辅助W波段毫米波系统中实施和验证.
    • 通过50米W频段链接传输后,使用低复杂度过器进行信号均等.

    主要成果:

    • 拟议的DTDO方法有效地减轻了时间域动和和扭曲对BER性能的影响.
    • 与非线性算法和集群分类方法相比,DTDO表现出较低的复杂性和卓越的动态跟踪能力.
    • 通过50米W频段链路传输的PAM4信号被均等化,保持了异常低的BER.

    结论:

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    • DTDO方法为光子辅助W频段系统中优化BER性能提供了强大而高效的解决方案.
    • 这种方法有效地利用了单载波传输的优势,提高了信号完整性.
    • DTDO方法在克服高频光通信系统的非线性损伤方面取得了重大进展.