Study on Airworthiness Requirement for the Position Quality of ADS-B System

This paper introduces the rationale of ADS-B systems, studies the airworthiness requirement to be complied with during designing and manufacturing 1090ES ADS-B OUT system. The paper makes focus study on the airworthiness standards of the position quality indicator and the encoding rules, and puts forward the conversion between the different rules. The paper provides the technical guide for the manufacturers and the airlines.