HERA RFI Detection

This dataset contains simulated and expert-labelled spectrograms from two radio telescopes: the Hydrogen Epoch of Reionization Array (HERA) in South Africa and the Low-Frequency Array (LOFAR) in the Netherlands. These datasets are intended to test radio-frequency interference (RFI) detection schemes. This entry pertains to the HERA dataset specifically.

The HERA dataset is comprised of:

• 560 Spectrograms and accompanying binary mask information.
• Several copies of this dataset with classes of RFI sources removed for out-of-distribution testing.

This dataset has been preprocessed into 512 x 512 x 1 images. The low number of target pixels (RFI) proportional to the total data volume makes this dataset a useful test for RFI detection schemes in radio astronomy and, more generally, anomaly detection or semantic segmentation methods.