| 变频器信号中大幅值噪声的数字滤波算法 |
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| 引用本文： | 陈忠明,唐厚君. 变频器信号中大幅值噪声的数字滤波算法[J]. 测控技术, 2005, 24(8): 12-15 |
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| 作者姓名： | 陈忠明 唐厚君 |
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| 作者单位： | 上海交通大学,电气工程系,上海,200240;上海交通大学,电气工程系,上海,200240 |
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| 摘 要： | 在变频器测试中,由于变频器的高频谐波带来的大幅值离散噪声严重影响了数据采集信号的准确性,一般低通滤波算法无法滤除这种噪声,提出了一种数字滤波算法,解决了这种噪声的滤波问题,它可以有效地滤去信号中的大幅值离散噪点,从受到严重干扰的信号中恢复出真实信号.
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| 关 键 词： | 大幅值离散噪声 信号失真 数字滤波算法 信号恢复 |
| 文章编号： | 1000-8829（2005）08-0012-04 |
| 收稿时间： | 2004-10-08 |
| 修稿时间： | 2004-10-08 |
Digital Filtering Arithmetic for Eliminating a Transducer's High Amplitude Noise |
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| CHEN Zhong-ming,TANG Hou-jun. Digital Filtering Arithmetic for Eliminating a Transducer's High Amplitude Noise[J]. Measurement & Control Technology, 2005, 24(8): 12-15 |
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| Authors: | CHEN Zhong-ming TANG Hou-jun |
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| Abstract: | In transducer test,the high amplitude discrete noise,caused by the transducer's high frequency harmonic wave,affects the data acquisition accuracy seriously.Since normal low pass filtering arithmetic can't remove such noise,a specific digital filtering arithmetic is proposed to deal with such noise.This arithmetic can annihilate the high amplitude discrete noise and recover true signal from acquired original signal,which is badly distorted by the high frequency interference. |
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| Keywords: | high amplitude discrete noise signal distortion digital filtering arithmetic signal recovery |
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