Search Results - Chenxia Liu
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Phase-Modulation-Based Stable Radio Frequency Transmission via 125 km Fiber Optic Link
Published 2023-01-01Get full textThis paper proposes a stable radio frequency (RF) transfer scheme based on phase modulation. The passive compensation method is used to compensate the phase variations. The use of only one mixer reduces the power consumption during the frequency mixing process. By utilizing a phase modulator, the is...
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Ultrastable Long-Haul Fiber-Optic Radio Frequency Transfer Based on Dual-PLL
Published 2021-01-01Get full textIn this paper, we demonstrate ultrastable radio-frequency (RF) transfer over long-haul optical fiber link. Our stabilized RF transfer technique is based on high-performance dual phase locked loops (dual-PLL) configuration which improves signal to noise ratio (SNR) of the round trip transmitted signa...
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A CNN-LSTM Phase Compensation Method for Unidirectional Two-way Radio Frequency Transmission System
Published 2024-01-01Get full textA convolutional neural network combined with long short-term memory (CNN-LSTM) phase compensation method (PCM) is proposed and demonstrated, where CNN is employed to extract spatial features, and LSTM is used to capture temporal features and realize the long-term predictions of residual phase fluctu...
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