基于复数主成分分析的磁共振波谱信号衰减系数的自动校正  

Automatic Alignment of Damping Factor in Magnetic Resonance Spectroscopy Based on Complex Principal Component Analysis

作　　者：曾卫明[1] 梁晓云[1] 罗立民[1] 

机构地区：[1]东南大学生物医学工程系,江苏南京210096

出　　处：《电路与系统学报》2004年第2期84-87,共4页Journal of Circuits and Systems

摘　　要：衰减系数的校正是磁共振波谱信号处理和分析过程中的一个关键难题。本文基于复数主成分分析,提出了一种自动的磁共振波谱衰减系数的校正方法,较成功地解决了这个难点问题。文中的模拟数据及其实现结果充分验证了该方法的有效性。Damping factor alignment is a key and difficult problem to the signal processing in magnetic resonance spectroscopy. Based on complex principal component analysis (PCA), a method for automatic alignment of damping factor in magnetic resonance spectroscopy is presented. As the result, the problem was successfully solved. The performance of the proposed method is verified by the data obtained from simulation.

关 键 词：复数主成分分析 磁共振波谱 衰减系数 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]