| 在连续噪声背景下分离脉冲信号的一种方法 |
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| 引用本文： | 张艳花,杨录. 在连续噪声背景下分离脉冲信号的一种方法[J]. 中北大学学报(自然科学版), 1996, 0(2) |
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| 作者姓名： | 张艳花 杨录 |
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| 作者单位： | 华北工学院 |
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| 摘 要： | 在探伤中经常遇到以脉冲形式出现的伤信号，伴有大小随机变化的连续噪声，包括某些因为仪器平衡点漂移产生的趋势项．有时噪声绝对值可能相当大，甚至超过伤信号．作者提出一种简便有效的方法，可以将伤信号分离出来，并对此方法作了一定的理论分析
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| 关 键 词： | 数据处理；噪声；伤信号；滑动平均值；滑动方差 |
A METHOD OF SEPARATING IMPULSE SIGNALS FROM CONTINUOUS BACKROUND NOISES |
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| Zhang Yanhua Yang Lu. A METHOD OF SEPARATING IMPULSE SIGNALS FROM CONTINUOUS BACKROUND NOISES[J]. Journal of North University of China, 1996, 0(2) |
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| Authors: | Zhang Yanhua Yang Lu |
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| Abstract: | In defect detecting, defect signals appear in the form of impulses, accompanied with continuous random noises, including some trend terms produced due to balance drift. Sometimes, the amplitude of noises may be rather large, even larger than the amplitude of the defect signals.The authors put forward a simple and effective method, which can separate the defect signals from noises, and make a preliminary theoretic analysis. At the end of this article, the method is verified by some examples of defect signals in the detection of wire ropes. |
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| Keywords: | data processing noises defect signals movable average value movable quadratic mean |
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