The Principle Of Detection And Location Of Target In Multi-Layered Media By TR-RTM Mixed Method

A time reversal (TR) - reversed time migration (RTM) mixed method has recently been proposed for locating targets in two-layered media. The experimental results have showed that the TR-RTM method is an effective method for determining the target location in two-layered media. However, for targets in multi-layer media, it is more difficult to distinguish the target signal and the interface signal because of the existence of multiple interfaces. The detection and location of targets in multi-layered media are studied. Through numerical simulation analysis, this method has been proved to be effective method for determining the target location in multi-layered medium.