一种针对拖尾噪声的消噪效果衡量准则

Effective Measurement for Methods of Removing Heavy-tailed Noise

文中由于拖尾噪声有更多的异常值,利用传统的消噪效果评价标准不能客观地评价不同消噪方法对拖尾噪声的抑制能力,文中提出利用信噪比提高值和最大误差值两个量来衡量不同方法的消噪效果,并给出了具体计算公式。实验结果表明,与传统的评价方法相比,文中所提的量化方法能更客观地评价不同方法对拖尾噪声的抑制能力。

The traditional effectiveness measures for denoising is not appropriate for heavy-tailed noise, because it has more outliers than common noise. The new measure based on enhanced signal-to-noise ratio and maximal reconstruction error is proposed. The expressions are also given in detail. The experimental results show that the proposed effectiveness measure is more proper for heavy-tailed noise than traditional ones.