A Derivation of Sensitivity Equations of the Error Components to Analyze Performance in the Direct Fire Control System

Title & Authors
A Derivation of Sensitivity Equations of the Error Components to Analyze Performance in the Direct Fire Control System
Kim, Jaehun; Kim, Euiwhan; Lee, Jeongyeob; Kim, Gunkook;

Abstract
In the direct Gun Fire Control System(GFCS), it is essential to analyze the impact of the specific error components on the hit probability to optimize the system design. For this purpose the sensitivity equations of these error components are conveniently used, but it is too difficult to get those equations for the complex system with too many system elements. Normally sensitivity analysis is performed using numerical and statistical methods for the ground combat system. This method requires much computation, and makes us difficult to estimate the sensitivity change of specific error component intuitionally for the changing operating conditions. In this paper we propose a set of sensitivity equations deriving from closed form solution of the ballistic differential equation for the bullet. They are handy equations with very little computations, easy to understand the physical meaning of the related system variables. Some simulation results are shown to demonstrate usefulness of our algorithm for the 30mm projectile.
Keywords
Closed form Ballistic Solution;Sensitivity Analysis;Error Components;Hit Probability;
Language
Korean
Cited by
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