Radio frequency interference identification and mitigation using simultaneous dual-station observations

RFI Identification and Mitigation Using Simultaneous Dual Station Observations

RFI mitigation is a critically important issue in radio astronomy using existing instruments as well as in the development of next-generation radio telescopes, such as the Square Kilometer Array (SKA). Most designs for the SKA involve multiple stations with spacings of up to a few thousands of kilometers and thus can exploit the drastically different RFI environments at different stations. As d...

Radio Frequency Interference Mitigation in Radio Astronomy

Exascale Real-Time Radio Frequency Interference Mitigation

Radio Frequency Interference (RFI) mitigation is extremely important to take advantage of the vastly improved bandwidth, sensitivity, and field-of-view of exascale telescopes. For current instruments, RFI mitigation is typically done offline, and in some cases (partially) manually. At the same time, it is clear that due to the high bandwidth requirements, RFI mitigation will have to be done aut...

Foreword to the Special Issue on Radio Frequency Interference: Identification, Mitigation, and Impact Assessment

O UR capacity to exploit the electromagnetic spectrum allows us to probe the universe and disseminate information. As these goals are intertwined, so are the shared resources afforded to each. Careful management of the electromagnetic spectrum results in the ability to perform precise remote measurements of the Earth and the cosmos, while using the same spectrum to send high-powered communicati...

Radio frequency interference detection and mitigation techniques using data from EcoSAR 2014 Flight Campaign

Radio frequency interference (RFI) has strong influence on wide band airborne radar systems, especially operaing at L-band (1-2 GHz) or lower frequencies. EcoSAR is a P-band digital beamforming radar system, and RFI has to be removed from raw echoes to obtain science quality data. In this paper we describe the current methodology used to tackle RFI with EcoSAR, and provide an example on its per...