Sen1-Jam: A Measured SAR Jamming Dataset for Few-Shot Recognition and Open-Set Identification

Sen1-Jam is a measured SAR jamming dataset for few-shot recognition and open-set identification research. The dataset consists of PNG-formatted SAR jamming image samples and a CSV annotation file containing filename-label pairs. It is constructed for benchmarking radar active jamming analysis under limited-data, open-environment, and real-measured conditions. The current release contains 7 measured jamming categories. All images are stored in the “Images” folder, and the annotation file “test.csv” provides the corresponding labels. This dataset is particularly suitable for research on few-shot SAR jamming recognition, unknown-jamming rejection, and measured-data evaluation under distribution shift. For detailed usage instructions, please refer to the README file included in this dataset.