降噪量 meaning in Chinese
noise reduction amount
Examples
- The equation of noise reduction due to the absorption will be deduced and added to the total noise reduction
探讨屏障的吸声性能对绕射降噪量的贡献，并推导出与吸声系数有关的绕射降噪量的公式。 - Under the limited size of the enclosure , the higher noise reduction is obtained in limited space , and good effectiveness is gained
在箱体尺寸受限制的条件下，利用有限的空间实现了较大的降噪量，取得了良好效果。 - The control over the surface radiation noise ( combustion noise and mechanic noise ) is restricted by factors like the engine performance . technically such a control is quite difficult to manage and the noise reduction effect is not so encouraging
发动机表面辐射噪声（燃烧噪声和机械噪声）的控制要受到发动机性能方面的种种限制，从技术角度讲难度很大，且降噪量有限。 - Secondly , ground on the duct noise control , the delayed - lms algorithm , which is actulized easily , is brought forward , then the simulation on pc is achieved . it is shown from the computer simulation that for the single frequency noise , there will be a good effect when choosing the suitable parameters ; but for the narrowband noise , the effect will become worse with increasement of the bandwidth . this result is helpful to analyze the parameters influencing anc
结果表明： ( 1 )随着滤波器长度的增大，系统收敛速度变快； ( 2 )随着值的增大，系统的收敛速度增大，但是当值超过某一范围时会引起系统的发散； ( 3 )次级通路的延迟数与初级噪声频率有关； ( 4 )对于窄带信号， dlms算法可以取得一定的降噪量，但是随着窄带信号带宽的增大，降噪效果明显变差。