摘要
介绍了小波基本理论与去噪原理,研究了小波阈值去噪改进方法在变形监测信号处理问题中的应用。实例表明,小波阈值去噪改进方法在变形监测信号的去噪中不仅能有效地降噪,而且较好地保持了信号的光滑性。改进方法所得的信号比增益较传统的阈值去噪方法有明显的提高。
The basic wavelet theory and the principle of denoising are discussed. The application of improved wavelet threshold denoising method in signal processing problem for deformation monitoring is introduced. The examples show that the improved wavelet threshold denoising method in the deformation monitoring signal denoising can not only reduce the noise effectively, but also maintain the smooth signal. The signals by the method are better improvements than traditional method.
出处
《桂林工学院学报》
北大核心
2008年第4期503-506,共4页
Journal of Guilin University of Technology
基金
国家自然科学基金资助项目(40574002)
广西自然科学基金资助项目(0339072)
关键词
小波滤波
变形监测
软阈值
硬阈值
wavelet filtering
deformation monitoring
soft threshold
hard threshold
