4 papers
Cross-Domain Radiomap Prediction for Multi-Scatterer Environment: A Spherical-Wave-Based Approach
Wenli Li, Bin Wang, Haiyan Fan +3
Radiomap prediction has found extensive applications in network planning and optimization. The radiomap is implicitly determined by electromagnetic (EM) wave propagation. The evolu…
High-precision laser spectrum analyzer via digital decoherence
Zhongwang Pang, Chunyi Li, Hongfei Dai +5
With the continuous advancement of laser technology, accurately evaluating the noise spectrum of high-performance lasers has become increasingly challenging. In this work, we demon…
Hybrid Fiber-Based Radio Frequency Distribution and Vibration Detection System Tailored for Large Radio Arrays
Hongfei Dai, Wenlin Li, Zhongwang Pang +4
Radio telescope arrays, such as Square Kilometre Array (SKA) and next-generation Very Large Array (ngVLA), require highly precise synchronization of time-frequency references to en…
A Tampering Risk of Fiber-Based Frequency Synchronization Networks and Its Countermeasures
Hongfei Dai, Yufeng Chen, Wenlin Li +4
Fiber optic networks are used worldwide and have been regarded as excellent media for transmitting time-frequency (TF) signals. In the past decades, fiber-based TF synchronization…