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针对传统的傅里叶变换已无法满足探地雷达信号的特征分析,本文提出了基于Mallat算法的小波去噪方法,这种方法可有效消除探地雷达回波信号的背景干扰和杂波。首先介绍了探地雷达组成原理及其工作过程,在此基础上,分析了探地雷达回波信号的特性,介绍了Mallat算和小波去噪原理,最后通过实验验证,证明了该方法的有效性,从而为探地雷达信号预处理开辟了一条有效的途径。
In view of the fact that traditional Fourier transform can not meet the characteristics of GPR signals, this paper proposes a wavelet denoising method based on Mallat algorithm, which can effectively eliminate the background noise and clutter of GPR echo signals. Firstly, the principle of ground penetrating radar and its working process are introduced. Based on the analysis, the characteristics of ground penetrating radar echo are analyzed. Mallat arithmetic and wavelet denoising principle are introduced. At last, the experimental results show that the method is effective Therefore, it opens up an effective way for GPR signal preprocessing.