| 小波滤噪用于示波计时电位信号处理的研究 |
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| 引用本文： | 顾文良,张书玲,张红权,郑建斌. 小波滤噪用于示波计时电位信号处理的研究[J]. 分析化学, 1999, 27(2): 220-223 |
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| 作者姓名： | 顾文良 张书玲 张红权 郑建斌 |
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| 作者单位： | 西北大学电分析化学研究所,数学系,西安,710069 |
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| 基金项目： | 国家自然科学基金资助课题，陕西省自然科学基金资助课题 |
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| 摘 要： | 根据信号（Ｓ）和噪声（Ｎ）在小波变换下表现出的截然不同的性质，提出了一种新的滤噪方法，研究了噪音在不同细节的性质、滤噪阈值的确定及平滑与滤噪的特点。对不同Ｓ／Ｎ的示波计时电位信号进行了实验结果表明；小波滤噪在大大提高Ｓ／Ｎ的同时，信号强度基本不损失，优于传统的滤噪方法。
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| 关 键 词： | 信号处理 小波变换 滤噪 示波分析 |
Application of Denoising by Wavelet Trasform in the Processing of Oscillographic Chronopotentiometric Signal |
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| GU Wenliang,ZHANG Shuling,Zhang Hongquan,ZHENG Jianbin. Application of Denoising by Wavelet Trasform in the Processing of Oscillographic Chronopotentiometric Signal[J]. Chinese Journal of Analytical Chemistry, 1999, 27(2): 220-223 |
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| Authors: | GU Wenliang ZHANG Shuling Zhang Hongquan ZHENG Jianbin |
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| Abstract: | Based on different properties of the signal and noise in wavelet transform, a new method of eliminadng noise was proposed. Properties of noise in different detaik, confirmation of denoising cutoff, comparison of smoothing and denoising were investigated. dE/dt-t, d3.5 E/dt3.5-t and other oscillographic chronopotentiometric signals with different signal noise ratio were processed. The experimental results indicated that the method not only was able to improve signal noise ratio but also hardly reduce the peak height of the signal, and thus it was superior to traditional processing methods. |
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| Keywords: | Signal processing wavelet transfonn denoising oscillographic analysis |
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