5G-Radiometer Coexistence Testbed for Spectrum Sharing Research

This testbed enables controlled experimental studies of spectrum coexistence between passive sensors and active wireless systems. Built around an L-band radiometer and 5G signal emulation, it facilitates end-to-end evaluation of radio-frequency interference (RFI) detection and mitigation strategies in a realistic shared spectrum environment.

Key features of the testbed include:

• Modular integration of radiometer and SDR-based 5G transmitter
• Configurable signal types, bandwidths, and power levels
• Radiometric Brightness Temperature retrieval for various scenarios
• Support for field deployment and data collection

This infrastructure has supported multiple publications, datasets, and real-world validations of deep learning-based RFI detection algorithms like RFI-Net, providing insights into the impact of 5G on passive sensing and approaches for resilient coexistence.