54 citations · 344 across the 33 of their papers we have counts for
7 papers · 1 filter
Application of Regularization Methods in the Sky Map Reconstruction of the Tianlai Cylinder Pathfinder Array
Kaifeng Yu, Shifan Zuo, Fengquan Wu +2
The Tianlai cylinder pathfinder is a radio interferometer array to test 21 cm intensity mapping techniques in the post-reionization era. It works in passive drift scan mode to surv…
Simulation-based Inference of Reionization Parameters from 3D Tomographic 21 cm Light-cone Images -- II: Application of Solid Harmonic Wavelet Scattering Transform
Xiaosheng Zhao, Yi Mao, Shifan Zuo +1
The information regarding how the intergalactic medium is reionized by astrophysical sources is contained in the tomographic three-dimensional 21 cm images from the epoch of reioni…
A simulation of calibration and map-making errors of the Tianlai cylinder pathfinder array
Kaifeng Yu, Fengquan Wu, Shifan Zuo +4
The Tianlai cylinder array is a pathfinder for developing and testing 21cm intensity mapping techniques. In this paper, we use numerical simulation to assess how its measurement is…
3D ScatterNet: Inference from 21 cm Light-cones
Xiaosheng Zhao, Shifan Zuo, Yi Mao
The Square Kilometre Array (SKA) will have the sensitivity to take the 3D light-cones of the 21 cm signal from the epoch of reionization. This signal, however, is highly non-Gaussi…
Map Reconstruction of radio observations with Conditional Invertible Neural Networks
Haolin Zhang, Shifan Zuo, Le Zhang
In radio astronomy, the challenge of reconstructing a sky map from time ordered data (TOD) is known as an inverse problem. Standard map-making techniques and gridding algorithms ar…
FAST drift scan survey for HI intensity mapping: I. preliminary data analysis
Yichao Li, Yougang Wang, Furen Deng +15
This work presents the initial results of the drift-scan observation for the neutral hydrogen (HI) intensity mapping survey with the Five-hundred-meter Aperture Spherical radio Tel…
Detecting HI Galaxies with Deep Neural Networks in the Presence of Radio Frequency Interference
Ruxi Liang, Furen Deng, Zepei Yang +9
In neutral hydrogen (HI) galaxy survey, a significant challenge is to identify and extract the HI galaxy signal from observational data contaminated by radio frequency interference…