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相关概念视频

Upsampling01:22

Upsampling

266
Managing signal sampling rates is essential in digital signal processing to maintain signal integrity. A decimated signal, characterized by a reduced frequency range due to its lower sampling rate, can be upsampled by inserting zeros between each sample. This upsampling process expands the original spectrum and introduces repeated spectral replicas at intervals dictated by the new Nyquist frequency. To refine this zero-inserted sequence, it is passed through a lowpass filter with a cutoff...
266

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相关实验视频

Updated: Jul 25, 2025

Generation and Coherent Control of Pulsed Quantum Frequency Combs
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集成可编程光谱过器用于频率复合的神经形态计算机.

Tigers Jonuzi, Alessandro Lupo, Miguel C Soriano

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    |June 29, 2023
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    概括
    此摘要是机器生成的。

    我们开发了一种新的可编程光谱过器,用于光子神经形态计算. 这个集成芯片操纵光学频率,使得高效的人工神经网络 (ANN) 执行低功耗.

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    Design and Characterization Methodology for Efficient Wide Range Tunable MEMS Filters
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    Optogenetic Entrainment of Hippocampal Theta Oscillations in Behaving Mice
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    相关实验视频

    Last Updated: Jul 25, 2025

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    科学领域:

    • 光子学 是一个光子学.
    • 神经形态计算是一种神经形态计算.
    • 光学信号处理 视觉信号处理

    背景情况:

    • 人工神经网络 (ANN) 越来越多地使用电子数字计算机实现.
    • 模拟光子实现为ANN提供了低功耗和高带宽的优势.
    • 之前的工作展示了一个光子神经形态系统,用于ANN算法的频率复杂化.

    研究的目的:

    • 为光子神经形态计算平台提供一个集成的可编程光谱过器.
    • 为了操纵用于ANN执行的光学频率.
    • 评估开发的芯片是否适合用于神经形态计算应用.

    主要方法:

    • 集成可编程光谱过器的设计和表征.
    • 过器控制了20 GHz间隔的16个独立波长通道的衰减.
    • 进行了数值模拟来评估芯片的性能.

    主要成果:

    • 可编程光谱过器成功设计和表征.
    • 该芯片展示了对16个不同的波长频道的控制.
    • 初步模拟表明芯片适合用于光子神经形态计算.

    结论:

    • 开发的集成可编程光谱过器是先进光子神经形态计算的关键组成部分.
    • 这项技术可以为ANN算法高效地操纵光学频率.
    • 结果为低功耗,高带宽的神经形态系统铺平了道路.