基于FPGA的超导MRI的B_0涡流补偿算法  

B_0 eddy current compensation algorithm of superconducting MRI based on the FPGA

作　　者：陈倩倩[1] 杨虹[1] 赵鹏[1] 

机构地区：[1]中国矿业大学(北京)机电与信息工程学院,北京100083

出　　处：《微型机与应用》2013年第12期42-44,共3页Microcomputer & Its Applications

摘　　要：采用可以用FPGA实现的算法进行梯度电流预补偿的方法进行B0涡流的补偿。鉴于FP-GA具有高速并行处理和状态机无限循环的特点,设计了一种从开机到断电,1μs计算一次不间断的B0涡流补偿的模式。试验证明,该方法通用性好、速度快、体积小、成本低。In this paper, the algorithm can be implemented with FPGA pre-compensation method of gradient current B0 eddy current compensation. In view of the FPGA with the characteristics of high-speed parallel processing and state machine infinite loop, this paper designs a power failure from the start to lus calculate the continuous B0 eddy current compensation mode. Test to verify the method versatility, speed, small size and low cost.

关 键 词：核磁共振成像 涡流补偿 FPGA 

分 类 号：TP399[自动化与计算机技术—计算机应用技术]