| 电感耦合等离子体原子发射光谱的现代谱估计 |
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| 引用本文： | 张卓勇,贾琼,刘思东,郭黎平,陈杭亭,曾宪津.电感耦合等离子体原子发射光谱的现代谱估计[J].光谱学与光谱分析,2000,20(3):343-346. |
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| 作者姓名： | 张卓勇 贾琼 刘思东 郭黎平 陈杭亭 曾宪津 |
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| 作者单位： | 1. 东北师范大学化学系,130024,长春
2. 中国科学院长春应用化学所,国家电化学和光谱研究分析中心,130022,长春 |
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| 基金项目： | 国家自然科学基金，教育部优秀年轻教师基金资助项目 |
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| 摘 要： | 用现代谱估计方法对电感耦合等离子体原子发射光谱（ＩＣＰ－ＡＥＳ）及其信号特性作了讨论。本工作用现代谱估计技术中的自回归模型（ＡＲ）方法计算功率谱。采用Ｌｅｖｉｎｓｏｎ－Ｄｕｒｂｉｎ递归算法计算ＡＲ模型的参数，然后用这些参数计算功率谱。用实际的ＩＣＰ－ＡＥＳ光谱和测量信号所得的结果表明，采用谱估计方法可以对ＩＣＰ－ＡＥＳ光谱的频率构成和特性作进一步深入的理解。
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| 关 键 词： | 电感耦合等离子体 原子发射光谱分析 现代谱估计 |
Modern Spectral Estimation of ICP-AES |
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| Zhuoyong ZHANG,Qiong JIA,Sidong LIU,Liping GUO,Hangting CHEN,Xianjin ZENG.Modern Spectral Estimation of ICP-AES[J].Spectroscopy and Spectral Analysis,2000,20(3):343-346. |
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| Authors: | Zhuoyong ZHANG Qiong JIA Sidong LIU Liping GUO Hangting CHEN Xianjin ZENG |
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| Institution: | Department of Chemistry, Northeast Normal University, 130024 Changchun. |
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| Abstract: | The inductively coupled plasma atomic emission s pectrometry (ICP-AES) and its signal characteristics were discussed using moder n spectral estimation technique.The power spectra density (PSD) was calculated u sing the auto-regression (AR) model of modern spectra estimation.The Levinson- Durbin recursion method was used to estimate the model parameters which were use d for the PSD computation.The results obtained with actual ICP-AES spectra and measurements showed that the spectral estimation technique was helpful for the b etter understanding about spectral composition and signal characteristics. |
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| Keywords: | Inductively coupled plasma Atomic emission spe ctrometry Modern spectral estimation Auto-regression model |
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