Simulation and Sky Reconstruction for Tianlai Array Kai-Feng Yu - PowerPoint PPT Presentation

Simulation and Sky Reconstruction for Tianlai Array Kai-Feng Yu NAOC Tianlai Collaboration Meeting, Pingtang, 2018

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Simulation Flow Array Model Sky model Note: TOD(visibility) • Artificial noise source: Add Noise Source calibration Add basic receiver Temperature • Receiver temperature: auto- correlation Apply Gain • Gain: gaussian, 1/f (ToDo) Add RFI • RFI: not included Add sample noise Final TOD

Tianlai Cylinder Pathfinder 15m N • 96 (31, 32, 33) dual polarization receivers • Irregular 40m 12.4m …… …… …… configuration: to reduce grating lobes Num_feed=31 Num_feed=32 Num_feed=33

Grating lobes Regular Spacing: (30, 30, 30), 0.4m Regular Spacing: (30, 30, 30), 0.3m