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Jun-Hua Gu

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Open access Oct 2026

A Point-source Catalogue from Direction-dependent Calibrated 21CMA Images

We present a deep low-frequency radio point-source catalogue centred on the North Celestial Pole (NCP) and extending 5○ in radius, derived from a single 24-h observation with the 21 CentiMeter Array (21CMA). Covering 75–175 MHz, the catalogue characterises extragalactic foreground point sources for Epoch of Reionizat...

Qi-Zhe Tang, Jing-Ying Wang, Jun-Hua Gu et al. · 0 citations
Review Sep 2026

A Sky-validated RDMA-fed GPU FX Correlator for QUEST

We present a reconfigurable, real-time GPU FX correlator for the four-antenna commissioning configuration of QUEST (Qilu University Explorer Survey Telescope). Deterministic RFSoC/FPGA acquisition is paired with a software-defined Python/CuPy correlator on a commodity GPU server: a custom InfiniBand RDMA receiver deliv...

Jia-Lang Ding, Jun-Hua Gu, Guan-Hong Lin et al. · 0 citations

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