The CubeSat Radiometer Radio Frequency Interference Technology (CubeRRT) validation mission: Performance and development of the Digital Backend technology

In this paper we discuss the design and development of the RadiometerDigital Backend (RDB) of the CubeSat Radiometer Radio FrequencyInterference Technology (CubeRRT) validation mission. We present a brief introduction of the mission and the Radio FrequencyInterference (RFI) detection and mitigation algorithm. The digital backend developed for the CubeSatis presented. The digital backend has unique capabilities of taking in wide bandwidths of up to 1GHz and can perform on-board complex operations to detect and filter out RFI in real-time. We present a few initial results of the backend spectrometer leading to full- system integrationand test.