Search Results - Junjie Ma

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    Projection Histogram-Assisted Estimation of Common Phase Error in Coherent Optical OFDM Systems

    Projection Histogram-Assisted Estimation of Common Phase Error in Coherent Optical OFDM Systems by Zhengxuan Li, Yun Li, Junjie Ma, Jian Chen, Yingxiong Song, Min Wang

    Published 2019-01-01

    In this paper, we present a novel blind common phase error estimation method in coherent orthogonal frequency division multiplexing systems using projection histogram-assisted processing. In the proposed algorithm, the constellation of the signal distorted by common phase noise is regarded as a tilt...

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    Research on the Dynamic Response of the Catenary of the Co-Located Railway for Conventional/High Speed Trains in High-Wind Area

    Research on the Dynamic Response of the Catenary of the Co-Located Railway for Conventional/High Speed Trains in High-Wind Area by Guanghui Li, Yongzhi Gou, Binqian Guo, Hongmei Li, Enfan Cao, Junjie Ma

    Published 2025-07-01

    To establish a theoretical foundation for assessing the dynamic performance of high-speed train catenary systems in wind-prone regions, this study develops a coupled pantograph–catenary model using ANSYS(2022R1) APDL. The dynamic responses of conventional high-speed pantographs traversing both mainl...

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