Theoretical Approach of Development of Tracking Module for ARPA system on Board Warships

• 발행기관: 한국항해항만학회
• 저자명: Tae-Gweon Jeong Bao-Feng Pan Anne Wanjiru Njonjo
• 간행물 정보: 『한국항해항만학회 학술대회논문집』2015년 추계학술대회, 53~54쪽, 전체 2쪽
• 주제분류: 공학 > 해양공학
• 파일형태: PDF
• 발행일자: 2015.10.30

영문 초록

The maritime industry is expanding at an alarming rate and as such there is a perpetual need to improve situation awareness in the maritime environment using new and emerging technology. Tracking is one of the numerous ways of enhancing situation awareness by providing information that may be useful to the operator. The tracking system described herein comprises determining existing states of own ship, state prediction and state compensation caused by random noise. The purpose of this paper is to analyze the process of tracking and develop a tracking algorithm by using α-β-γ tracking filter under a random noise or irregular motion for use in a warship. The algorithm involves initializing the input parameters of position, velocity and course. The actual positions are then computed for each time interval. In addition, a weighted difference of the observed and predicted position at the nth observation is added to the predicted position to obtain the smoothed position. This estimation is subsequently employed to determine the predicted position at (n+1). The smoothed values, predicted values and the observed values are used to compute the twice distance root mean square (2drms) error as a measure of accuracy of the tracking module.

키워드

Tracking module warship α-β-γ filter state matrix state compensation smoothing prediction stable condition