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该文主要研究了基于软件通信体系结构(SCA)的软件定义无线电(SDR)系统设计与实现。首先介绍了SCA的相关背景,然后根据SCA的标准设计了基于SCA的SDR系统硬件平台、硬件抽象层(MHAL)、核心框架、波形软件的实现技术方案,最后通过测试波形对该系统的实时性能进行测试和分析。结果表明:基于SCA的SDR系统互操作性和波形可移植性得到很大提高,实时性能可以满足实际应用需求,但依旧是系统的性能瓶颈。
This paper mainly studies the design and implementation of Software Defined Radio (SDR) based on Software Communication Architecture (SCA). Firstly, the related background of SCA is introduced. Then, the SCA-based SDR system hardware platform, hardware abstraction layer (MHAL), core framework and waveform software are designed according to SCA standard. Finally, the real-time performance of the system Conduct testing and analysis. The results show that the SCA-based SDR system interoperability and waveform portability have been greatly improved, real-time performance can meet the practical application needs, but it is still the performance bottleneck of the system.