摘要
文章设计了一种基于龙芯的数字信号处理实验平台。该平台采用国产化设计方案,基于VPX架构实现了平台功能可扩展;以龙芯处理器为主控芯片的信号处理板卡,集成了多种控制器和接口,将国产Linux系统Loongnix裁剪、配置、编译、移植到CPU上,以桌面方式管理平台内资源,便于实验操作;基于Python语言搭建实验环境,对音频信号进行了仿真加噪及滤波实验,获得良好结果,且测试时间、内存性能参数满足实验性能要求。该平台性能良好,具有操作便捷、扩展性强等特点,可有效降低核心芯片依赖进口问题,实现国产化替代。
This paper designs a digital signal processing experimental platform based on Loongson.The platform adopts a domestic design scheme which is based on the VPX architecture to realize the scalability of platform functions.The signal processing board with the Loongson processor as the main control chip integrates a variety of controllers and interface modules.The domestic Linux system Loongnix is cut,configured,compiled and transplanted to the CPU.It manages the resources in the platform in a desktop mode and is convenient for experimental operations.The experimental environment is built based on the Python language,and the experiments about noise addition and filtering for speech signals have achieved good results.The test time and memory performance parameters also meet the experimental performance requirements.The platform has good performance,convenient operation,strong expansibility,etc.It can effectively reduce the dependence of core chips on imports and realize localized substitution.
作者
周治国
张沙沙
黄礼靖
邸顺帆
林汝梁
周学华
何冰松
ZHOU Zhiguo;ZHANG Shasha;HUANG Lijing;DI Shunfan;LIN Ruliang;ZHOU Xuehua;HE Bingsong(School of Information and Electronics,Beijing Institute of Technology,Beijing 100081,China;Beijing Aerospace Wanyuan Science&Technology Co.,Ltd.,Beijing 101102,China)
出处
《实验技术与管理》
CAS
北大核心
2021年第12期143-148,164,共7页
Experimental Technology and Management
基金
北京理工大学本科“数字信号处理”MOOC建设信息技术与教育教学深度融合专项。
