Multi-path Delay Estimation for IM-DD System by Power Cepstrum

Junpeng Liang, Jianwei Tang,Jinlong Wei, Zhongliang Sun,Linsheng Fan,Zhaopeng Xu,Honglin Ji, Lulu Liu,Shangcheng Wang,Xueyang Li,Tonghui Ji,Yu Yang,Jiali Li,Zhixue He,Weisheng Hu

JOURNAL OF LIGHTWAVE TECHNOLOGY（2025）

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Key words

Cepstrum,Noise,Interference,Low-pass filters,Receivers,Delay estimation,Fourier transforms,Reflection,Laser noise,Intensity modulation,delay,digital signal processing (DSP),IM-DD,multi-path

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