数据采集与处理2019，Vol.34Issue(2)：274-280,7.DOI:10.16337/j.1004-9037.2019.02.009
一种基于偏微分方程的信号增强模型
A Signal Enhancement Model Based on Partial Differential Equations
李俊 1李远禄 1蒋民2
作者信息
- 1. 南京信息工程大学自动化学院,南京,210044
- 2. 江苏省大气环境与装备技术协同创新中心,南京,210044
- 折叠
摘要
Abstract
Overlapping peaks and low amplitude peaks in peak detection stage will lead to a high false detection rate. Therefore, a peak enhancement step is added before the peak detection stage to improve the resolution of overlapping peaks and increase the amplitude of the low amplitude peaks. The method in the model is to combine the classical nonlinear diffusion with the derivative spectra. In other word, the signal after the derivative spectrum enhancement is used as the initial signal of the classical nonlinear diffusion, and the enhanced signal is the result of the diffusion. As a test of the proposed mode, the performance of signal enhancement by the proposed model is compared with non-enhancement one, then compared with the performance of other signal enhancement methods. Results show that the proposed model is effective.Finally, the proposed model is applied to the enhancement of MALDI mass spectrometry.关键词
非线性扩散/导数谱/重叠峰/信号增强/峰检测Key words
nonlinear diffusion/derivative spectra/overlapped peak/signal enhancement/peak detection分类
信息技术与安全科学引用本文复制引用
李俊,李远禄,蒋民..一种基于偏微分方程的信号增强模型[J].数据采集与处理,2019,34(2):274-280,7.
