| 1. | The treatment of laser noise and its effect on the laser noise spectra up to this point involved semiclassical arguments .
到目前为止，都是用半径典理论处理激光噪声及其对激光频谱的影响。 |
| 2. | Room - noise spectrum
室内噪声谱 |
| 3. | Road traffic noise reducing devices - test method for determining the acoustic performance - normalized traffic noise spectrum
道路交通噪音减低装置.测定声学性能的试验方法.标准化交通噪音频谱 |
| 4. | Road traffic noise reducing devices . test method for determining the acoustic performance . part 3 : normalized traffic noise spectrum
道路交通噪音减弱装置.声性能测试方法.第3部分:正常交通噪音范围 |
| 5. | Road traffic noise reducing devices - test method for determining the acoustic performance - part 3 : normalised traffic noise spectrum ; german version en 1793 - 3 : 1997
道路交通降噪设备.测定声音特性的试验方法.第3部分 |
| 6. | The noise estimation includes vad and updating noise spectrum continuously . the first one is complemented easily , the later aims at actual unstable noise and updates the noise spectrum continuously
噪声估计分为vad ( voiceactivitydetection )和连续更新噪声谱两种,前者实现简单,后者针对实际非平稳噪声和即时更新噪声。 |
| 7. | Aiming at latent damage induced by esd , 1 / f noise spectrum and a new method similarity coefficient based on the matched maxima of wavelet transform modulus are offered at the same time
针对静电在mos器件中引入的潜在损伤，在使用1 / f噪声功率谱监测的同时并提出了一种新的由1 / f信号提取得到的基于子波变换极大模的相似系数表征法。 |
| 8. | In order to carry out the acoustic and aerodynamics performances tests , seven resonators are designed and made , and a specialized engine intake silencer and exhaust silencers test bench was designed . the tests and analysis are performed as well . on the basis of the intake noise spectrum of sc7080a , a three - parallel - connected resonant silencer is designed , and that has efficiently controlled the acceleration noise of sc7080a
在此基础上设计并加工了两类七个共振型进气消声器，研制了发动机进排气消声器性能测试实验台，开发了发动机进排气消声器声学性能测试软件，并在该实验台上测试了所设计的进气消声器静态工况下的传声损失，从实验的角度研究了共振腔的尺寸、形状对其共振频率的影响及其趋势。 |
| 9. | The research content of the thesis is the speech enhancement technique that is used in the acoustic feedback suppresser . firstly , we searched and compared the methods of noise estimation based on vad and updating the noise spectrum continuously , combined them together to make some improvement . secondly , we research on some speech enhance techniques including short time spectrum analysis speech enhance technique and its improvement form , simulated the algorithms and compared them each other
本论文研究语音增强技术在声反馈抑制器中的应用,论文的主要工作包括: 1 .对基于vad ( voiceactivitydetection )的噪声估计方法和连续更新噪声谱的方法进行研究和比较,针对仿真结果分析两种噪声估计的性能,并将两者结合起来,做出改进,用于实际的语音增强系统中。 |
| 10. | In the paper , the esd stressing tests for n - channel mosfets are performed , and main electrical parameters , 1 / f noise spectrum and its time series are monitored during the test . it is found that the 1 / f noise changes much more sensitive to the esd latent damage than the electrical parameters , at the same time , similarity coefficient also changes more quickly especially for smaller w / l devices
通过对mos器件的静电应力试验，同时监测试验过程中器件的电参数、 1 / f噪声功率谱密度以及由1 / f噪声的时间序列提取的相似系数变化，发现1 / f噪声对于静电应力引起的损伤要比电参数的变化敏感得多。 |
