摘要
介绍了小波软门限和硬门限法去噪的处理方法 ,分析了采用不同的小波进行软门限去噪的效果 ,比较了软门限去噪和硬门限去噪的特点。仿真结果表明 ,对高斯白噪声的去噪处理 ,选用db8小波比用sym1和haar小波可以得到更好的去噪效果 。
The method of the hard threshold and the soft threshold that used in wavelet de-noising is introduced and the de-noising results using different wavelet are analyzed, the characteristics of the hard threshold and the soft threshold are compared. The results of simulation indicate that db8 wavelet can gain better result than sym1 and haar wavelet, the soft threshold method is better than the hard threshold.
出处
《自动化技术与应用》
2004年第3期21-23,共3页
Techniques of Automation and Applications
