A New Approach to the Evaluation of Collision Risk using Sech Function

Jeong, Tae-Gweon

Journal of Navigation and Port Research 2003;27(2):103-109.
Published online June 30, 2003.

Sech 함수를 이용한 새로운 충돌위험도 평가법

정태권

A New Approach to the Evaluation of Collision Risk using Sech Function

Tae-Gweon Jeong

Abstract

Evaluating the risk of collision quantitatively plays a key role in developing the expert system of navigation and collision avoidance. This study analysed the existing methods of appraising the collision risk, examined the problems that are intrinsic to them, and developed a new approach to its evaluation by using the sech function as an alternative to them. This paper applied the new method in appraising the collision risk and suggested how to decide the safe range of ownship’s action.

Key Words: sech 함수; collision risk;sech function;distance to CPA;approach time;safe range of ownship’s action

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