Time-Domain EMI Characterisation Methods for Subsurface Radar in Planetary Missions

This paper presents time-domain electromagnetic interference measurement methodologies for comprehensive characterization of the frequency band used by subsurface radars in interplanetary missions. These methodologies combine EMI receiver and oscilloscope measurements, enabling statistical analysis and overcoming the limitations of traditional frequency-domain approaches in predicting Radio Frequency Interference in the operating bandwidth. The presented measurements are conducted under stringent conditions, addressing the extremely low-level electric field requirements from 6 to 12 MHz frequency band.