中频数字化软件无线电接收机的设计和仿真

Design and Simulation of IF Digitization Software Radio Receiver

针对当前软件无线电技术发展的中频数字化,建立了以FPGA为核心的中频数字化接收机信号处理平台。与传统基于DSP技术的实现方式相比,该平台继承了以DSP为核心的信号处理平台优点,同时具有灵活的在线配置性能,更好的体现软件无线电体系结构的开放性和全面可编程性。用Simulink建立了解调算法的仿真平台,结合Altera公司的FPGA芯片ACEXEP1K100,阐述了具体的实现方法。

According to the current development of software radio technological in intermediate frequency digitization,the general intermediate frequency digitization receiver platform and the algorithm model have been established based on FPGA.Comparing with the tradition realization way based on the DSP technology,this platform has inherited the merits of the platform which take DSP as the core signal processing,at the same time has the nimble on-line configuration performance.So this platform more manifests the software radio system structure＇s openness and the comprehensive programmability.Unifing the FPGA chip ACEX EP1K100 of Altera Corporation,the concrete realization method is elaborated.