In order to analyze the theoretical model for relative acoustic-to-seismic coupling ratio method to detect land-mine, an experimental system for acoustic landmines detection was developed.

Maneuvering target tracking algorithm based on adaptive Gauss model and EKF was built for improving the tracking performance in Multi-static systems.

Based on the RCS characteristic of single and bistatic guidance radars, the mathematical model, which describes the finding range varies with the distance between stations, was constructed.