基于软件通信体系架构的OFDM波形的设计与实现

Design and Implementation of OFDM Waveform Based on Software Communications Architecture

基于软件通信体系架构设计实现了通用硬件、软件平台和组件化OFDM波形。通用硬件平台采用Xilinx公司的ZYNQ SOC芯片和ADI公司的AD9361为核心处理芯片,并设计了覆盖30 MHz~2 GHz的宽频段信道模块;通用软件平台按照SCA 4.1标准研制了核心框架软件;OFDM波形按照波形标准API接口进行了组件化封装,并通过平台设备和服务组件接口与底层平台适配。最后测试了波形的功率谱、误码率、接收灵敏度等指标,结果证明,波形性能可以满足设计指标要求。

A general hardware and software platform is designed and implemented for an OFDM waveform.The general hardware platform includes Xilinx′s ZYNQ baseband chip,ADI′s AD9361 RF chip,and a 30 MHz~2 GHz RF front-end.The general software platform is designed according to SCA 4.1 specification.The OFDM waveform is divided into multiple components and encapsulated on the standard platform device component interface and service component interface.The performance of the OFDM waveform,including power spectral density,bit error rate,and receive sensitivity is tested.The test results demonstrate that the waveform performance meets the design expectations.