Miss distance Analysis of Proportional Navigation Using Normalized Equations with Radome Effect, Saturation, and Body Rate Feedback

In this paper، the linearized 2-D equations of proportional navigation guidance (PNG) are normalized in order to carry out the missdistance analysis considering acceleration saturation and radome effect. The control system dynamics is modeled using the first-order transfer function. To reduce the missdistance due to radome effect، the body rate feedback is added to the commanded acceleration in the analysis. Using this approach، useful normalized curves are obtained for parametric study and modification of PNG. Finally، the normalized equations of a modified PNG، having nonlinear terms consisting of line-of-sight rate with different powers، are derived.