Modeling And Coding Of Aerial Intelligence Exchange Models

In order to ensure efficient,complete and accurate transmission of Aeronautical information,ICAO has proposed a transition program from Aeronautical Information Services to Aeronautical Information Mangement(AIM),emphasizing that aeronautical information agencies should provide digital aviation data and information and realize that aviation data can be exchanged internationally in order to support the global information sharing environment.Aeronautical Information Exchange Model(AIXM)is the key for establishing AIM,and China is at a preliminary stage of development in this area,and there are relatively few relevant studies.Therefore,the study of AIXM related specification and applications will promote the development of China’s Aeronautical Information database.This paper mainly focuses on the research of AIXM coding specification and the application research of AIXM dataset.In the research of AIXM coding specification,this paper firstly introduces the key points of AIXM coding in detail and composes the basic structure of AIXM.Secondly,we collect the specifications related to obstacle and route data,summarise the requirements for these two types of data in the AIXM specification,and form a data summary table.Then analyse and summarise the specific AIXM coding steps for obstacles and routes.Finally,using the spatio-temporal data model,the temporal characteristics model of AIXM is compared to draw corresponding analytical conclusions,based on which a retrieval algorithm for the AIXM obstacle dataset is proposed.In the application research of AIXM data,t the proposed retrieval algorithm and the improved A-star algorithm are used to design a helicopter obstacle warning solution for two scenarios with and without low-altitude visual routes,using the helicopter pre-flight obstacle warning as the research scenario and the AIXM obstacle dataset and route dataset as data sources.Finally,the proposed AIXM dataset retrieval algorithm and application method are integrated to design the AIXM data query and application platform.In summary,the research on AIXM in this paper can provide assistance to those engaged in the field and help promote the development of aviation intelligence database in China.