基于DSP的MIMO室内可见光通信系统数据处理  

Data processing of MIMO indoor visible light communication system based on DSP

作　　者：范仲圣 梁忠诚[1] 刘学明[1,2] 居秋琦 张妥 

机构地区：[1]南京邮电大学光电工程学院,南京210046 [2]南京晓庄学院物理与电子工程学院,南京211171

出　　处：《光通信技术》2014年第1期42-45,共4页Optical Communication Technology

基　　金：国家自然科学基金(60878037)资助;江苏省研究生培养创新工程(CXLX11_0402)资助

摘　　要：提出了一个基于TMS320F28335型浮点DSP的MIMO室内可见光通信系统数据处理方案。系统在数据传输方面运用了DSP的直接存储器访问(DMA)方式,能够满足实时信号处理中高速数据传输要求,且减小了CPU的负担,节省了整个系统的时间。实验结果表明,该数据处理方案克服了信道串扰带来的不利影响,准确性好,可靠性高,保证了系统数据的实时恢复。This paper introduces a Data processing scheme of MIMO indoor visible light communication sys- tem based on TI＇s floating point DSP TMS320F28335. Its characteristic is to use Direct Memory Access abili- ty of TMS320F28335 to achieve data transmission. This method can satisfy the requirements for high-speed data transmission in real-time signal processing and also makes the data processing take less resource from DSP CPU, which saves the running time of the whole system greatly. The experimental results show that the accuracy and reliability of this Data processing scheme are both well. It overcomes the negative influence of the channel crosstalk and then makes sure the data of system can be recovered in real-time.

关 键 词：可见光通信 数字信号处理器 多输入多输出 发光二极管 直接存储器访问 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]