A Reconfigurable Multi-Modal SDR Transceiver for CubeSats
2021 IEEE AEROSPACE CONFERENCE (AEROCONF 2021)(2021)
摘要
As the attention towards CubeSats increases due to their low manufacturing and launch costs, it becomes more and more relevant equipping them with Software-Defined-Radio (SDR) technologies to fulfill tasks for various scientific missions. The most recent state-of-the-art about small satellites is quickly moving toward this direction. To provide the highest degree of flexibility, we decided to build a basic baseband multicarrier infrastructure, exploiting the usual Fast-Fourier Transform (FFT) digital signal processing module. In such a way, we provide a software-defined transceiver capable at supporting all standard and non-standard multicarrier transmission waveforms, namely: OFDMA, SC-FDMA and MC-CDMA, but also capable at reconfiguring itself in single-carrier mode with Frequency-Domain Equalization (SC-FDE) and, if needed, even in single-carrier DS/CDMA mode. The dynamic reconfiguration of the receiver is enabled by a waveform recognition block, based on the analysis of the cross-correlation of the received signal in the time/frequency domain. After introducing the motivations and the state-of-the-art framework, the paper describes in detail the software architecture of the transceiver, implemented with open-source GNU Radio tools. Preliminary results will be then presented, aimed at assessing the performance of the proposed SDR-based transceiver. Finally, some considerations will be drawn, concerning with the concrete feasibility of the proposed SDR implementation in the framework of commercial low-cost digital signal processing platforms.
更多查看译文
关键词
Focusing,Receivers,Digital signal processing,Computer architecture,Transforms,Tools,Transceivers
AI 理解论文
溯源树
样例
生成溯源树,研究论文发展脉络
Chat Paper
正在生成论文摘要