Wall compensation algorithm for through-wall-radar building layout imaging

In the through-wall-radar imaging (TWRI), the inaccurate wall positions and the image intensity difference between front wall and back wall caused by unknown wall penetration are serious problems. In this paper, a new algorithm is proposed to solve these problems without knowing relative permittivity of wall in multi-layer condition. XFDTD simulation results prove the new algorithm can correct the wall position and reduce the image intensity difference between walls.