地质雷达信号去除水平噪声算法

为了去除地质雷达探测过程中出现的道间水平干扰信号,在研究了数字滤波技术的基础上,将预测算法和IIR滤波器相结合,提出了一种水平预测滤波算法,通过设定预测步长,利用预测反褶积获得预测值与实际测量值之间的相关系数,并根据相关系数设计高通IIR滤波器,从而实现了一种高精度可调的去除水平于扰信号的方法。应用于实际探测的雷达数据中,结果表明该方法能有效去除干扰,提取出有效的信息。

Algorithm of removing horizontal disturbance on GPR signal

In order to remove the trace-interval horizontal disturbance, on the basis of studying digital filtering this paper presents a kind of horizontal prediction filtration algorithm which combines the IIR filter and predictive algorithm. By setting up predictive step length, achieving the coefficient between predictive and actual value using predictive deconvolution and designing the IIR high pass filter according to the coefficient, this algorithm realizes a highly accurate and adjustable denoising method. The application to GPR signal demonstrates that this algorithm can effectively remove horizontal disturbance and select useful information