| 基于Gabor变换的信号降噪方法 |
| A De noising Method Based on Gabor Transform |
| 投稿时间：2009-05-08 |
| 中文关键词:Gabor变换 故障诊断 降噪 |
| 英文关键词:Gabor transform fault diagnosis de noising |
| 基金项目:国家自然科学基金(10602038)；教育部科学技术研究重点项目(209013) |
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| 中文摘要: |
| 介绍了Gabor变换的基本理论，提出了一种基于Gabor变换的降噪方法。该方法首先对信号进行Gabor变换，并选择合适的阈值对Gabor展开系数进行处理，然后对处理后的Gabor展开系数进行Gabor逆变换，从而实现降噪。仿真结果表明，该方法具有很好的降噪效果，为机械故障诊断提供了一种新的思路。 |
| 英文摘要: |
| The theory of the Gabor transform is introduced and a de noising method based on the Gabor transform is proposed. At first, the Gabor transform is applied to the signal and the Gabor expansion coefficients are processed by the appropriate threshold valve. Then the de noised signal is obtained by the Gabor inverse transform. The simulated results indicate that this method has good de noising effect, and can provide a new means for mechanical diagnosis. |
| 张光明,申永军,吴彦彦.基于Gabor变换的信号降噪方法[J].石家庄铁道大学学报：自然科学版,2009,(3):86-90. |
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