小波变换在弹射加速度滤波中的应用

小波分析作为一种崭新的信号处理方法，在工程界受到了越来越广泛的重视，已成功应用于信号分析、图像处理及非线性科学等方面。小波变换是去噪的有力工具，能将由各种不同频率成分组成的混合信号分解到不同的频率段上，有效地用于滤波和信噪分离。本文基于小波分解与重构理论，分别对航空弹射加速度信号滤波，与传统的消噪法进行了比较。结果表明小波去噪法用较少的数据就能很好地完成滤波功能，并且滤波的效果优于传统的方法。

Application of Wavelet Transform in Filtering with Ejection Acceleration

The wavelet analysis,which is a new method on signal processing,is paid great attention to the engineering field.It has been successfully applied in signal analysis,image processing,nonlinear science,etc.The wavelet transform is a powerful tool of denoising.It can decompose the mixed signals which consist of different frequencies in the different frequency band,and be effectively used in signal filtering and the seperation between signal and noise.Based on the wevelet decomposition and reconstruction,this paper filters the ejection acceleration signal and compares with the traditional method on denoising.The result shows that the method of wavelet denoising can better reach the function of filtering,and its effect is better than traditional denoising method.