| 电弧传感器小波信号处理系统 |
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| 引用本文： | 洪波,袁灿,潘际銮,屈岳波. 电弧传感器小波信号处理系统[J]. 焊接学报, 2005, 26(1): 61-63,68 |
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| 作者姓名： | 洪波 袁灿 潘际銮 屈岳波 |
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| 作者单位： | 湘潭大学,机械工程学院,湖南,湘潭,411105 |
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| 摘 要： | 利用小波分析所具有的良好时域、频域局部性的特点，结合DSP(数字信号处理器)技术，设计了基于小渡变换的带通滤波器，并把此滤波器直用于旋转电弧的信号处理。该滤渡器的中心频率可以根据旋转频率中自动调整，而带宽可以通过改变软件参数来调整。试验结果表明，电弧信号经该滤波器处理后，其信噪比得到了大大提高。
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| 关 键 词： | 小波变换 信号处理 电弧传感器 焊接 |
| 文章编号： | 0253-360X(2005)01-61-03 |
| 收稿时间： | 2004-02-02 |
Wavelet signal processing system in arc-sensor |
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| HONG Bo,YUAN Can,PAN Ji-luan and QU Yue-bo. Wavelet signal processing system in arc-sensor[J]. Transactions of The China Welding Institution, 2005, 26(1): 61-63,68 |
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| Authors: | HONG Bo YUAN Can PAN Ji-luan QU Yue-bo |
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| Affiliation: | Department of Mechanical Engineering, Xiangtan University, Xiangtan 411105, Hunan, China,Department of Mechanical Engineering, Xiangtan University, Xiangtan 411105, Hunan, China,Department of Mechanical Engineering, Xiangtan University, Xiangtan 411105, Hunan, China and Department of Mechanical Engineering, Xiangtan University, Xiangtan 411105, Hunan, China |
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| Abstract: | Making use of the merits of local property in time do-main and frequency domain of the wavelet analysis merhod,combiningwith digital signal processing techruque,the author designed a band-passfilter based on the wavelet transformation and applied it to the signal-pro-cessing of the rotating-arc.The center fiequncy of the filter could be ad-justed automatically acciordng to the revolving~equency,and the band-width of the filter could be adjusted by changing the software parameters.The experiment results showed that the signal-to-noise ratio of the signalsprocessed by the filter could be improved significantly. |
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| Keywords: | wavelet transform signal proccssing arc-sensor |
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