ناکمینه فاز

In this paper, the effect of non-minimum phase control system on the miss distance of a class of one-dimensional guidance law due to initial heading error and also constant and time-varying target maneuvers (including ramp and sinusoidal) is presented. The guidance and control system dynamics is modeled by a fifth-order transfer function with acceleration limit and radome effect. More precisely, each of the seeker and noise filter is taken as a first-order transfer function. The control system and airframe are modeled by a third-order non-minimum phase one. Miss distance analysis is made by using normalized governing equations and plotting normalized curves, resulting in useful curves for parametric study specially the effect of zero location of airframe dynamics for analysis, modification, and design of a class of linear and nonlinear guidance laws.