基于小波变换的车辆驾驶室低频振动噪声消噪处理方法  

Denoising Method of Low Frequency Vibration Noise in Vehicle Cab Based on Wavelet Transform

作　　者：焦萍萍 周显春[1] JIAO Pingping;ZHOU Xianchun(School of Information and Intelligence Engineering,Sanya University,Sanya 572022,China)

机构地区：[1]三亚学院信息与智能工程学院,海南三亚572022

出　　处：《电声技术》2022年第5期134-136,140,共4页Audio Engineering

基　　金：海南省自然科学基金“基于最大频繁子图基因的恶意软件同源性判定关键技术研究”(No.620MS064)。

摘　　要：汽车内部噪声多为低频声响,为了消除车辆驾驶室的低频振动噪声,提出低频振动噪声消噪处理方法。利用大数据技术挖掘驾驶室内低频振动噪声信号数据,并获取信号特征,再利用小波变换的方法进行滤波去噪,实现低频振动噪声的消噪处理。实验表明,所设计的方法具有较好的去噪效果,可以有效控制车辆内部的低频噪声。The noise inside the car is mostly low-frequency sound. In order to eliminate the low-frequency vibration noise in the vehicle cab, this paper puts forward the low-frequency vibration noise denoising method, uses the big data technology to mine the lowfrequency vibration noise signal data in the cab, obtains the signal characteristics, and then uses the wavelet transform method to filter and denoise to realize the denoising of low-frequency vibration noise. Experiments show that the designed method has good denoising effect and can effectively control the low-frequency noise inside the vehicle.

关 键 词：大数据技术 车辆驾驶室 低频振动噪声 小波变换 

分 类 号：TN912.2[电子电信—通信与信息系统]