Abstract
This paper presents an in-situ test concept for a multi-band software-defined radio (SDR) platform in a mixed-field radiation environment. Special focus is given to the complex automated test setup with respect to the requirements of the irradiation facility. Additionally, selected test results of a system-level evaluation are presented and discussed. For the verification of the mixed-field radiation environment, the software-defined radio (SDR) was also tested under proton irradiation. The cross-sections for the observed single event effects are compared and show similar results.
Highlights
A software-defined radio (SDR) is a system that allows simple reconfiguration of the radio signal and radio frequency (RF) circuitry by changing the signal processing algorithm in a digital signal processor (DSP) or field programmable gate array (FPGA)
For the Zynq-7020, DDR3 and NAND flash device being used in the system design, radiation tests have been performed by different institutions [3,4]
In order to verify the results from the CHARM test campaign, one of the SUTs has been irradiated with mono-energetic protons only at the Kernfysisch Versneller Instituut (KVI) located on the Zernike
Summary
A software-defined radio (SDR) is a system that allows simple reconfiguration of the radio signal and radio frequency (RF) circuitry by changing the signal processing algorithm in a digital signal processor (DSP) or field programmable gate array (FPGA). The German Aerospace Center (DLR) has developed a new, highly-integrated generic SDR (GSDR) to realize multi-band operation on a single radio platform for spacecraft applications, using a state-of-the-art signal processing device and two radio frequency integrated circuit (RFIC) chips as programmable RF front-end [1]. The GSDR system is designed with a low-cost approach, avoiding implementation of expensive radiation hardened (RadHard) devices, but focusing on mitigation of radiation effects on both system and circuit levels. The system is tested in a unique radiation environment providing mixed-field radiation. Proton induced radiation effects test results on the GSDR are presented in Section 6 and are compared to the test results of the mixed-field radiation test.
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