| 正弦波形畸变和失真度的分析 |
| Analysis of the Sine Signal Distortion and the Total Harmonic Distortion |
| 投稿时间：2005-12-13 |
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| 中文摘要: |
| 测试波形的畸变程度可用波形的失真度来表示.目前常用的频域法求取和计算失真度的结果与波形的畸变有背离的地方.实际失真度很大,测出来的值却偏小.本文提出一种INV时频法,可以弥补频域法的缺陷,文内给出了计算实例. |
| 英文摘要: |
| The distortion of the measured signal can be presented by the total harmonic distortion. The equation calculating the total harmonic distortion and the result do not coincide with the signal distortion. The measured result is small although the distortion is evident in practice. The INV time- frequency method proposed in this paper can counteract the weakness of the frequency method. A practical example is presented in this paper. |
| 应怀樵 刘进明 沈松 |
| 东方振动和噪声技术研究所,北京100085 |
| 中文关键词: 波形畸变 失真度 频域法 时频法 |
| 英文关键词:signal distortion total harmonic distortion frequency domain method time frequency method |
| 基金项目: |
| DOI： |
| 引用本文：应怀樵,刘进明,沈松.正弦波形畸变和失真度的分析[J].计测技术,2006,26(4):15~16,31. |
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