摘要
主要研究了快速傅里叶变换和离散小波变换在两种不同信号中应用,对处理的结果进行了比较分析.说明在突变信号处理中,更适宜使用小波处理,而对于相对平稳的信号,应用傅里叶变换处理则更为有效.
This paper discusses the application of the fast Fourier transform and discrete wavelet transform, we choose two kinds of signals and obtain the results. It is shown that for the stationary signal, Fourier transform is more effective, but for the signal which is not so good as stationary signal, wavelet processing would be better.
出处
《广东技术师范学院学报》
2014年第7期12-15,共4页
Journal of Guangdong Polytechnic Normal University
关键词
傅里叶变换
离散小波变换
信号压缩
信号去噪
fast fourier transform
discrete wavelet transform
signal compression
signal denoising
