从硬件和软件两方面建立了基于DSP和FPGA的软件无线电平台。重点研究了该实验平台多模式

数字调制解调的硬件实现结构、软件实现结构和不同模式之间的切换等，充分体现了软件无线电系统的灵活性、

开放性和兼容性等特点。-From both hardware and software based on DSP and FPGA software radio platform. Focus on the experimental platform for multi-mode digital modulation and demodulation of the hardware structure, software structure and to switch between different modes, such as, fully demonstrates the flexibility of software radio systems, such as openness and compatibility features.