摘要
大多数去噪方法只能对高斯噪声或某一类有色噪声进行去噪处理.提出一种新的相位匹配噪声估计的高阶谱去噪方法,利用该方法既可以去除高斯噪声又可以去除非高斯噪声,通过高阶谱和相位匹配实时的逼近当前噪声,建立二次去除噪声方法,通过实验证明该方法能够非常明显的去除高斯与非高斯噪声,在无法分出噪声的种类情况下进行信号的去噪,取得非常好的去噪效果.
Most denoising method can deal with Gaussian noise or some kind of colored noise.This paper presents a new method of higher order spectral denoising on phase matching noise estimation.The method can remove not only the Gaussian noise but also Non-Gaussian noise.The noise is removed by high order spectral and phase matching estimate of current noise.The experimental results clearly show that this method can remove the Gaussian and non-Gaussian noise.The method makes a good denoising when the noise can not be determined.
出处
《小型微型计算机系统》
CSCD
北大核心
2010年第12期2381-2384,共4页
Journal of Chinese Computer Systems
基金
国家自然科学基金项目(60970112)资助
国家自然科学基金项目(60970157)资助
关键词
相位匹配
噪声估计
高阶谱
信号去噪
phase matching
noise eatimation
high order spectra
signal denoising
