Correlation of linear and nonlinear radome error induced miss distance predictions

A linear radome error model is defined which bridges the gap between nonlinear and linear radome error miss distance predictions. The model includes an effective slope and an effective noise variance. The effective slope and effective noise are a function of gimbal angle motion which is dependent upon guidance system disturbances such as target maneuver and range independent noise. Analytical expressions for effective slope and effective noise are derived for a sinusoidal radome error. Miss distances using the linear model correlate well with those using the sinusoidal radome.