一种多通道探地雷达数据实时融合方法

针对不同工程实例的需求,采用新的处理方法,使多通道探地雷达能在一个视图中实时输出所有通道信息。该方法以数据融合技术为基础,具体实现分为三步:首先,进行带通滤波、时空校准和坐标转换等预处理;然后,采取信息熵这一度量参数和加权平均的融合准则进行实时计算;最后,利用自动增益对融合数据补偿、增强。多通道探地雷达数据实时融合结果能同时显示所有通道检测到的目标或异常,根据各通道信息熵的大小,能在发现目标的同时进行快速定位。该方法使多通道探地雷达的数据显示突破了传统方式的局限性,改善了滞后性,满足了工程应用对目标快速定位的要求。

A Real Time Data Fusion Method with Multi-channel Ground Penetrating Radar

A new process method is used on multi-channel ground penetrating radar for various requirements of projects. Consequently all channels'' information of multi-channel ground penetrating radar is displayed in one view in real time. This method is based on the data fusion technology. It is realized through three steps. Firstly, pretreatments are used, including band-pass filter, space-time calibration and coordinate conversion. Then, real time process is operated based on a parameter of entropy and a rule of weighted average. Finally, data compensation and amplification is done by automatic gain. All targets and abnormity are visualized at one time in fusion result of multi-channel ground penetrating radar. Using the magnitude of entropy, targets are found and located quickly. With this method conventional display limits of multi-channel ground penetrating radar are broken and the delay performance is improved. The demand of rapid locating target in project is also satisfied.