| 数字信号处理技术在气体检测中的应用 |
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| 引用本文： | 刘春,吴晓玲,刘文清.数字信号处理技术在气体检测中的应用[J].电子测量与仪器学报,2011,25(6):553-557. |
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| 作者姓名： | 刘春 吴晓玲 刘文清 |
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| 作者单位： | 合肥工业大学电气与自动化工程学院; |
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| 基金项目： | 国家“863”计划(编号:09AA063006)资助项目 |
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| 摘 要： | 数字信号处理技术在去除待测信号中的噪声中有着重要的应用,提出了基于频谱分析方法设计数字滤波器去除二次谐波中干扰噪声的方法,首先对待测信号进行频谱分析,分析后的信号特点作为依据,进行数字滤波器的设计,能使滤波器的技术指标更加准确.在气体的检测中,有效地去除了二次谐波中的噪声,得到更准确的二次谐波曲线,使曲线的拟合更加准确...
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| 关 键 词： | 频谱分析 数字滤波技术 平滑度 |
Applications of digital processing technology in gas detection |
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| Liu Chun,Wu Xiaoling,Liu Wenqing.Applications of digital processing technology in gas detection[J].Journal of Electronic Measurement and Instrument,2011,25(6):553-557. |
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| Authors: | Liu Chun Wu Xiaoling Liu Wenqing |
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| Affiliation: | Liu Chun Wu Xiaoling Liu Wenqing (School of Electrical and Automation Engineering,Hefei University of Technology,Hefei 230009,China) |
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| Abstract: | Digital signal processing technology has important applications in removing the noise in the under test signal.This paper proposed the designing of digital filter based on spectrum analysis.Analyzing the measured signal's spectrum as the basis for digital filter designing.In the gas detection,it can remove the noise of second harmonic wave-form better.It can make the second harmonic waveform more accurate,the waveform fitting will be much accurate,get-ting more accurate values of gas concentrations. |
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| Keywords: | spectrum analysis digital filtering technique smoothness |
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