基于多核DSP的宽带OFDM波形的并行设计与实现  

The Parallel Design and Implementation of Broadband OFDM Waveform Based on Multi-Core DSP

作　　者：王萌[1] 习勇[1] 郝嘉禄 程龙旺[1] 

机构地区：[1]国防科学技术大学电子科学与工程学院,长沙410073

出　　处：《信息化研究》2015年第3期32-37,共6页INFORMATIZATION RESEARCH

摘　　要：传统软件无线电(SDR)波形组件主要基于现场可编程门阵列(FPGA)实现,其不足之处在于FPGA较大的功耗和体积,使其不适合于体积和功耗受限的手持终端,并且单核数字信号处理器(DSP)处理速度有限。考虑到以上问题,基于多核多线程DSP硬件平台,分析基带处理器DSP中常见的多核多线程和单指令多数据(SIMD)并行架构,并在此架构基础上,从并行信号处理角度设计并实现了宽带正交频分复用(OFDM)波形。测试结果表明,在该硬件平台上可以有效地运行宽带OFDM波形,对于在移动终端上实现软件无线电技术,有一定的应用参考价值。Traditional software defined radio wave component is mainly based on FPGA,but the power and volume of FPGA is too large to suit the volume and power-constrained handheld devices.And the singlecore DSP's processing speed is limited.Taking into account the above problem,based on multi-core multithreaded DSP hardware platform,common multi-core multi-threaded parallel architecture and SIMD architecture of baseband DSP are analyzed,and based on this framework,a broadband OFDM waveform from the point of parallel signal processing is designed and implemented.The testing results show that a broadband OFDM waveform on the hardware platform can run effectively.For the realization of software defined radio technology in the mobile terminal,there is some certain reference value.

关 键 词：多核DSP 宽带OFDM波形 单指令多数据 并行信号处理 

分 类 号：TN929.53[电子电信—通信与信息系统]