A Cross Platform Framework for Software Defined Radio

[摘要] Software defined radios (SDRs) implement in software those parts of a radio which havetraditionally been implemented in analogue hardware. We explain the importance of thisdefinition and introduce reconfigurability and portability as two further goals. Reconfigurabiltyis a property of the SDR platform, which may be a microprocessor, configurablehardware device, or combination of the two. We demonstrate that the field-programmablegate array is suficient for the implementation of practical SDR systems. Portability, on theother hand, is a property of the modulation and demodulation software, also known as waveformspecification software. We evaluate techniques for achieving portability and show thatwaveforms can be specified in a generic form suitable for the autogeneration of implementationstargetting both microprocessor- and FPGA-based architectures. The generated codeis in C++ and VHDL respectively, and the tools used include formal models of computationand the XSLT language.

[发布机构] Stellenbosch University