基于自适应滤波器的地雷背景噪声抑制

Landmine background noise reduction based on the adaptive filter

作为一种新的探雷方法,探地雷达在探雷领域得到了广泛的应用。由于雷达回波信号包含有很多杂散信号,目标信号被强噪声信号所淹没,为了提高雷达回波信号的信噪比,有利于地雷的识别和检测,文章提出了一种基于自适应滤波器的背景噪声消除方法对回波信号进行杂波抑制。采用该方法对DeTeC的数据进行分析的结果表明,该方法能有效地去除直达波,抑制背景噪声,分离出目标信号。

As a new exploration method, ground penetrating radar is widely applied in the landmine exploration field. However, weak object echo signal is often obscured the strong interference signals. In order to improve the signal-to- noise and the probability of the landmine recognition, a new de-noising clutter method based on adaptive IIR Filter is presented in this paper. It uses this method to dispose the data from the demining technology center （DeTeC）. The experiment results show the method is valid. The direct wave and background noise can be effective eliminated and the object signal can be extracted when the methods are adopted.