A Revised MCU-Assisted GPR Site Sampling Method and Its Application in Karst Development Detection

In modern geophysical prospecting, GPR has been more and more widely used due to its accuracy and high efficiency. However, different site conditions and a rather strict demand for equal-distance reminding actually set limits on the traditional application method of GPR. In solving this problem, a new MCU-controlled equal-distance reminding device has been designed to form a new site sampling platform. With the reduction of the difficulties in equal-distance reminding as well as technical distortions, a revised more practical MCU-assisted GPR site sampling method has formed. The practical application case proves this method more efficient. Compared to the traditional method, the new one improves the sampling accuracy, diminishes positioning inaccuracy from movement and reduces limits set by the environment. In all, this new sampling method eases the process of detecting underground karst caves and improves the accuracy.