Covariance analysis describing function technique is a conventional method to solve the performance analysis of the nonlinear missile guidance system. Aiming at the faultiness of covariance analysis describing function technique and its improved method. this paper proposes a new method to solve the mean and covariance transfer issue by using the high-degree spherical-radial cubature r... https://parisnaturalfoodes.shop/product-category/cinnamon-mints-xylitol/