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作 者:肖亮[1] 袁家辉 邢藏菊[1] XIAO Liang;YUAN Jiahui;XING Cangju(College of Information Science and Technology,Beijing University of Chemical Technology,Beijing 100029,China)
机构地区:[1]北京化工大学信息科学与技术学院,北京100029
出 处:《现代电子技术》2024年第6期85-90,共6页Modern Electronics Technique
摘 要:磁共振成像(MRI)是一种无创检测人体内部结构的技术,随着接收通道数量增多,产生的采集数据量越来越大,给快速成像带来了巨大的挑战。文中设计一种基于SerialLite Ⅱ协议的磁共振采集数据传输系统。系统功能主要由FPGA实现,分为数据缓存模块和数据传输模块两类,数据缓存模块基于双缓存区和状态机控制的乒乓操作,有效地解决了因数据量大而带来的读写冲突问题;数据传输模块基于FPGA建立SerialLite Ⅱ数据传输链路,实现了采集数据的光纤传输。通过仿真和实验验证了系统功能的正确性,表明其能够实现磁共振采集数据的高速稳定传输。Magnetic resonance imaging(MRI) is a non-invasive technology for detecting the internal structure of human body.As the number of receiving channels increases,the amount of collected data generated increases,which brings huge challenges to rapid imaging.A magnetic resonance acquisition data transmission system based on the SerialLite Ⅱ protocol is designed.The system functions are mainly implemented by FPGA and are divided into data cache module and data transmission module.The data cache module is based on double buffer area and state machine controlled ping-pong operation,which effectively solves the problem of read and write conflicts caused by large data volume.The data transmission module is used to establish a SerialLite Ⅱ data transmission link based on FPGA,so as to realize optical fiber data transmission of collected data.The simulation and experiments verifies the correctness of the system functions,showing that it can achieve high-speed and stable transmission of magnetic resonance acquisition data.
关 键 词:磁共振成像 SerialLiteⅡ协议 数据传输 无创检测 FPGA 数据缓存 光纤传输
分 类 号:TN751.11-34[电子电信—电路与系统]
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