高等学校化学学报 ›› 1997, Vol. 18 ›› Issue (6): 860.

• 论文 • 上一篇    下一篇

小波神经网络在紫外光谱识别中的应用研究

刘伟, 熊建辉, 王洪, 王永明, 潘忠孝, 张懋森   

  1. 中国科技大学应用化学系, 合肥, 230026
  • 收稿日期:1996-06-03 出版日期:1997-06-24 发布日期:1997-06-24
  • 通讯作者: 张懋森.
  • 作者简介:刘伟, 男, 29岁, 博士研究生.
  • 基金资助:

    国家自然科学基金

The Recognition of UV Spectra by Using Wavelet Neural Network

LIU Wei, XIONG Jian-Hui, WANG Hong, WANG Yong-Ming, PAN Zhong-Xiao, ZHANG Mao-Sen   

  1. Dept. of Applied Chem., Univ. of Sci. & Tech. of China, Hefei, 230026
  • Received:1996-06-03 Online:1997-06-24 Published:1997-06-24

摘要: 介绍了用于信号识别的小波神经网络的结构和算法,并将其用于酪氨酸、二羟基苯丙氨酸和色氨酸的紫外光谱识别.在小波神经网络中,采用Morlet母小波和一维搜索变步长共轭梯度优化方法,结果表明,小波神经网络对于光谱间的细微结构差别具有很好的识别能力.

关键词: 小波神经网络, 紫外光谱, 识别

Abstract: The wavelet neural network employed in signal recognltion is presented and ap-plied to recognltion of the UVspectra of tyrosine, 3, 4-dihydroxyphenylalanine and tryto-phane. In the network, Morlet mother wavelet and line search conjugate gradient optimiza-tion method are used- The convergence speed is fast and the error of learning sets drops to 0.000073 only through 8 iterations. The error of testing patterns is 0.000064- The recogni-tion results(shown in Table 1)show that the sets of spectra can be well recognized by using the wavelet neural network.

Key words: Wavelet neural networks, UV spectra, Recognition

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