Fast RCS Estimation of Chaff Clouds

This paper introduces a method-of-moments (MoM) based solver for the fast estimation of chaff cloud scattering properties. The solver is designed using the method of moments, where uniformly distributed spherical chaff clouds are decomposed into blocks, with block size dependent on the wavelength. By employing optimized strategies for impedance matrix filling and generating an initial guess for the algebraic solution, the computational time is significantly reduced. Ultimately, the proposed method achieves a large reduction in computation time, while maintaining the accuracy of RCS calculations.