Application of forward scattering phenomenon: Speed estimation for intruder

Forward scattering is a special phenomenon for bi-static sonars, and it has received much attention in recent years because it can provide a lot of useful information for estimations. In this paper, two kinds of speed estimation method are proposed for forward scattering. Very simple geometrical principles are used in the two methods, and the complex acoustic field is not needed to be calculated when executing the estimation. The simulation and experiment results proved the validity of these methods.