並列摘要
Currently, most Software Defined Radio (SDR) related products and researches focus on analog communication and voice transmission. In this paper, we propose a SDR platform with digital data communication capability. This platform consists of Field Programmable Gate Array (FPGA) based radio hardware and open source SDR software modules. The main features include: 1) Radio Spectrum Sensing; 2) Reconfigurable Radio Modules; 3) Link for Digital Data Communication. Based on the proposed SDR platform, we could easily reconfigure its radio modules and discover the spectrum hole to achieve better communication quality. These features are important basis to accomplish Cognitive Radio (CR) technologies.