波谱学杂志 ›› 1991, Vol. 8 ›› Issue (1): 45-54.

• 研究论文 • 上一篇    下一篇

用等比指数加权法改善LPSVD谱的分辨率

李斌, 黄永仁   

  1. 华东师大分析测试中心
  • 收稿日期:1990-02-20 修回日期:1990-07-19 出版日期:1991-03-05 发布日期:2018-01-20
  • 基金资助:
    国家自然科学基金和教育部博士点基金资助项目

IMPROVEMENT OF RESOLUTION IN LPSVD SPECTRA WITH PROPORTIONAL EXPONENTIAL WEIGHTING

Li Bin, Huang Yongren   

  1. NMR Lab. Analysis Center ECNU
  • Received:1990-02-20 Revised:1990-07-19 Online:1991-03-05 Published:2018-01-20

摘要: LPSCD法是目前线性预测法取代FFT在实践中最有意义的方法之一。本文建议在LPSVD之后作等比指数加权处理可改善HRNMR谱的分辨率,并保留高分辨NMR谱的所有特征。甚至可以用线段的集合重构高分辨谱,它与原FFT谱具有同样的化学位移、强度和积分。

关键词: 等比指数加权, LPSVD, 分辨率

Abstract: In practice, LPSVD is one of the most interesting linear-prediction techniques instead of FFT now. In this paper, a method is proposed by means of proportional exponential weighting which is performed after LPSVD, one can keep all characteristic parameters in HRNMR-spectra and improve their resolution, so far as a spectrum can be reconstructed by a group of lines with the same chemical shifts, intensities or integration of FFT spectra.

Key words: Proportional exponential weighting, LPSVD, Resolution