计权网络

对噪声信号采用SoundandVibrationToolkit进行A计权网络滤波，然后进行连续A声级L（Aeq）计算，得出噪声舒适度等级；

And A-weighting analysis in Sound and Vibration toolkit are used for noises-signal . We can calculate the L_ ( Aeq ) of the sound , and then evaluate the grade .

结果测量发现聚苯乙烯造粒机、聚乙烯造粒机、休息室。控制室的A计权网络的等效声级均未超过有关的标准，而频谱分析则发现其主要的声强级均分布在200Hz以下。

Results The leq ( A ) did not exceed about criterion in polystyrene machine , rest room , control room , whereas most sound levels were distributed below 200 Hz by frequency analysis .

传统的噪声倍频程分析仪由硬件滤波网络和计权网络构成。

Traditional noise octave analyzers consist of filter network and weight network based on hardware .

然后设计了有专用计权网络的电子设备，可以按照这样曲线测量电声系统的失真。

Then electronic equipment with special weighted networks is designed . According to this curves the distortion of audio system can be measured .

文章通过对A计权、B计权和C计权3种噪声计权网络频率响应函数的建模，得出了这3种频率计权函数的解析表达式。

In this paper , the method of three kinds of weighted networks ( A , B and C weight ) is established based on the study of their frequency response functions . Three weighting function expressions are derived .