由于地质雷达发射的电磁波容易受到外界因素的干扰,使得采集到的数据噪声较多、信噪比较低、分辨率也较低,导致了资料判读与解译的困难。本论文主要探讨多道中值滤波方法在雷达信号去噪中的应用,从强背景中提取出微弱的有效信号。 As the electromagnetic waves emitted by the GPR are easily disturbed by external factors, the noise of the collected data is relatively high, the signal-noise ratio is relatively low, and the resolution is also low, which leads to difficulties in interpretation and interpretation of the data. This thesis mainly discusses the application of multi-median filtering method in radar signal denoising, and extracts weak effective signals from strong background.