ACASアルゴリズム移行期のRAレポートへの主成分分析の適用

概要

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ACAS, Airborne Collision Avoidance System, is known as a system to reduce the risk of midair collisions between aircraft. TCAS, Traffic Alert and Collision Avoidance System, units had been installed in commercial aircraft as the ACAS products since 1990 in Japan. TCAS is equipped with almost aircraft of the main airline in Japan now. The collision avoidance logic for ACAS has been upgraded to version 7 to suppress the unnecessary RA and so on in recent years. ACAS provides the RA, Resolution Advisory, based on the ACAS algorithm when aircraft approaches others aircraft within certain preventive space volume. When RA is generated, the RA report is reported by the pilot to know the situation at the time of RA occurrence. However, it is difficult to analyze the trend of RA reports for the transition periods of ACAS algorithm because of the small number of RA reports. This paper describes the result of applying the principal component analysis to the RA reports.
社団法人日本航海学会の論文
2006-09-25