A software defined radio test-bed implementation

Weiss, S. and Shligersky, A. and Abendroth, S. and Reeve, S. and Moreau, L. and Dodgson, T. and Babb, D. (2003) A software defined radio test-bed implementation. In: IEE Colloquium on DSP enabled Radio, 2003-09-22 - 2003-09-23.

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We report on the implementation of a software defined radio (SDR) based on state-of-the-art digital signal processors (DSPs), which are linked serially to PCs. While time critical operations are executed on specialised transmit and receive processors with a fixed block structure, the baseband processing is performed on highly flexible DSPs. The latter run several concurrent functionalities, such as the reception of data over a serial link, the assembly of symbols and frames for transmission, as well as receiver functions such as a fractionally spaced equaliser for synchronisation and mitigation of potentially dispersive channels under a DSP/BIOS system. The testbed system is capable of transmitting packets of data over the SDR link.