波谱学杂志Issue(3)：462-469,8.DOI:10.11938/cjmr20150307
方差评估在幅值限制脉冲优化中的应用
Optimization of Limited Amplitude Radiofrequency Pulse with Variance Evaluation
摘要
Abstract
In the design of optimized radiofrequency excitation pulse with limited amplitude, the variance of the pulse excitation efficiency is taken into account to improve the excitation efficiency. It was shown that this method can significantly reduce the inhomogeneity of broadband excitation. The effects of different weights and pulse amplitude restrictions are also discussed in terms of how to achieve better excitation results.关键词
脉冲优化/幅值限制/最优控制理论/宽带/射频场不均匀性Key words
optimal pulse/radiofrequency pulse amplitude/optimal control theory/broadband/radiofrequency inhomogeneity分类
数理科学引用本文复制引用
张树林,常严,杨晓冬..方差评估在幅值限制脉冲优化中的应用[J].波谱学杂志,2015,(3):462-469,8.基金项目
国家自然科学基金资助项目(11105096)，中国科学院科研装备研制项目资助(YZ201253)，江苏省自然科学基金资助项目(BK20131171)，苏州市科技计划资助项目(SH201207)． （11105096）
