Research on RCS Characteristics of Bottom Row Missile Based on Moment Method

The RCS characteristics of the bottom-row projectile jet in the microwave frequency range were studied. By studying the plasma properties of the tail-spray gas, the critical electron concentration of the tail-spray ionized gas reflection was derived, and the plasma model of the tail-spray gas was established. The hydrodynamic method is used to analyze the distribution of the hydrodynamic parameters of the tail gas, and the hydrodynamic model of the tail spray is established. Finally, the RCS characteristics of the bottom row projectile are calculated by the moment method of computational electromagnetics, and the calculation is verified by the electromagnetic calculation software. The research results provide a reference and basis for the measurement of the bottom row of the target radar, and have a certain guiding significance for the measurement of the radar scattering characteristics of the bottom.