The Terminal Guidance System Performance Analysis: a Finite-time Gain Measurement Approach
Fenghua He, Long Wang, Yu Yao, Denggao Ji, Weishan Chen · AIAA Guidance, Navigation, and Control (GNC) Conference · 2013
In this paper, we consider the performance analysis problem of a terminal guidance system. The aim of the problem is to compare the miss distance between a flight vehicle and a target in the presence of noise, disturbance and other influencing factors. We establish a linear time-varying system model in a finite time horizon to study the performance analysis problem, and we also provide several augmentation form models of the terminal guidance system. A finite time gain measurement index is proposed to be the metric of the zero effort miss distance(ZEM), which is the estimation of the minimal miss distance between the flight vehicle and the target. A sufficient and necessary condition is proved for the finite-time gain measurement index. The statistical significance of the finite time gain measurement is also treated. Some simulation results are given to illustrate the effectiveness of the proposed performance analysis method.