Deception Jamming Power Against SAR

Based on a coherent- deception- jamming method against SAR,the relationship between jamming power and fidelity is studied with simulation and theoretical analysis. The maximum and minimum jamming power that required is given. Research results show that deception jamming power has strong effect on deception fidelity. The minimum jamming power should be sure of that jamming- to- signal ratio must be more than 6d B. The maximum value is depending on the RCS of ground object around the jamming position. The optimal jamming- to- signal is close to 12 d B. In the optimal state the jamming image can show itself and fitting closely together with the around ground object image.