小波分析在海洛因检测中的应用研究

Wavelet Analysis Applied to the Research on Heroin Detection

将小波分析应用到能量色散型X射线毒品检测的能谱信号处理中:提出一种新的自适应相关去噪算法,达到较好的滤波效果;设计了一种简单有效的寻峰算法,较好定位强峰和弱峰。实验结果和X射线衍射数据、海洛因PDF卡片相比较,相对误差都很小。

Wavelet analysis is applied to process energy spectrum signal of drug detection by energy scattering X-Ray. In the paper, we put forward a new adaptive correlation denoising algorithm, which could achieve good filter effect. Also, a simple and effective method of peaks seeking is designed, which might anchor both strong peaks and weak peaks. Eventually, comparing experiment result with data by XRD and PDF, it makes out low relative error.