| 1. | It offers us the basis of the wheel / rail impact noise prediction 建立轮轨冲击噪声激扰时域输入模型,为轮轨冲击噪声的预测提供了基础。 |
| 2. | Speech enhancement approach based on signal subspace with multi - input in impulsive noise 冲击噪声环境下基于信号子空间的多通道语音增强算法 |
| 3. | Pind semiconductor devices - mechanical and climatic test methods - part 16 : particle impact noise detection 半导体器件.机械和气候试验方法.第16部分:粒子冲击噪声探测 |
| 4. | Laboratory measurement of the reduction of transmitted tapping machine impact sound by floor coverings on a solid standard floor 用地板面料覆盖标准固体地板的试验室测量法测定攻丝机冲击噪声的衰减值 |
| 5. | Simulation results show that the algorithm is effective to reduce the impacts of impulse noise , white gaussian noise and gaussian colored noise 仿真实验结果表明:该算法对于冲击噪声有抑制作用,对高斯白噪声、高斯有色噪声也有一定的抑制效果。 |
| 6. | Results of the practical testing showed that the new method was effective and could enhance the testing veracity of the instrument with a very low cost 实际测试及现场应用表明,该滤波方法可有效滤除冲击噪声干扰,提高仪器检测结果的准确度,对系统影响小,使用方便。 |
| 7. | Acoustics - measurement of sound insulation in buildings and of building elements - part 12 : laboratory measurement of room - to - room airborne and impact sound insulation of an access floor 声学.建筑物和建筑元件的隔音测量.第12部分:隔绝通道的房间到房间的气载噪声和冲击噪声的试验室测量 |
| 8. | In order to solve the problem of speech enhancement in impulsive noise , on the basis of signal subspace decomposition without speech model , a multi - input speech enhancement algorithm was presented 摘要针对冲击噪声环境下的语音增强问题提出了一种不依赖任何语音信号模型、适用于冲击噪声的基于信号子空间分解的多通道语音增强算法。 |
| 9. | The exhaust noise contains complex noise elements , including the exhaust noise with a base frequency measured in the number of exhausts in unit time , the resonance noise of the gas column in the pipe , the gas stream blowing noise at the exhaust manifold , the exhaust gas jetting and impact noise , the helmholtz resonance noise of the cylinder , the karman eddy noise and the turbulent noise inside the exhaust system 排气噪声包含了复杂的噪声成分:以单位时间内排气次数为基频的排气噪声、管道内气柱共振噪声、排气歧管处的气流吹气噪声、废气喷注和冲击噪声、汽缸的亥姆霍兹共振噪声、卡门涡流噪声及排气系统内部的湍流噪声等。 |
| 10. | Abstract : “ high pressure oil shock ” has been found to be the major source of shock noises in the rotary piston vacuum pumps . recently , we found that the oil shock may shift forward . here , the high pressure oil - shock and the formation mechanism of three other types of shock were analyzed so as to reduce the vacuum pump noises 文摘: “高速油液冲击”是滑阀真空泵冲击噪声的主要激励源,通过试验发现了这一冲击的前移现象,并进一步分析了高速油液冲击和其他三种冲击的形式,为降低滑阀真空泵噪声提供了可靠的依据。 |