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Reconfigurable photonic complex-valued matrix–vector multiplication processor based on time-division multiplexing

delete2026-01-13
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PRE
AI
Y
Yanfeng Bi
X
Xinyu Wu
Y
Yusen Wu
Z
Zhihong Zhang
J
Jingwei Wen
C
Chuan Wang *
DOI:10.1016/j.optlastec.2026.114687delete
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摘要

摘要

En 中文
矩阵-向量乘法(MVM)运算在光子计算系统和信号处理中发挥着关键作用。基于时分复用架构,我们提出了一种可重构的光学复数MVM(RP-CMVM)处理器。该方案采用复数编码和解码技术,仅使用三个强度调制器即可执行任意复数运算。同时,该架构能够灵活切换复数和实数计算任务,而无需改变系统硬件。对于涉及任意两组复数数据的计算,RP-CMVM输出的均方根误差(RMSE)约为3E-3。此外,它支持使用复数Sobel算子进行图像并行边缘提取,输出图像的RMSE约为1E-2。然后,在虹膜分类任务中,基于RP-CMVM的神经网络达到了96.67%的测试准确率。此外,我们基于所提方案实现了相干光通信系统中的频率偏移补偿任务,其误码率基本与经典算法一致。进一步地,该方案结合波分复用实现并行计算,其计算速度可达万亿次每秒(TOPS)级别。因此,RP-CMVM处理器为构建可重构、高效的MVM计算平台提供了一种替代解决方案。

期刊

O
optics & laser technology
IF:
0
论文数:
880
被引数:
0

机构

B
Beijing Normal University
学者数:
3.3W
论文数: 2.7W
被引数: 4.2W
C
China Mobile
学者数:
939
论文数: 701
被引数: 2
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