FM中频数字化的FPGA实现

Implementation of FM digital IF based on FPGA

依照软件无线电数字化中频架构,采用音频采集芯片PCM1801、FPGA芯片X3S500E、数模转换器DA9654构建硬件平台,在此基础上实现了FM的中频数字调制。此外,通过对FPGA的配置,该平台还能实现其他方式的调制。与传统模拟调制相比,充分体现了软件无线电配置灵活、复用性高的优势。

Followed by the architecture of the Software defined radio,a testbench constituted by audio ADC, FPGA and communication DA was built and on which the FM digital IF are implemented. Not only that, other modulation can also realized by reconfigure the FPGA. This shows great advantages on its smart cpnfiguratuion and high ability on reuse comparing to analog modulation.