衛星を利用した自己同期方式ADSの伝送特性解析

概要

論文の詳細を見る
Satellite-based Automatic Dependent Surveillance (ADS) using a polling protocol can reduce a transmission delay greatly compared with the conventional ADS using the satellite data communication that meets ICAO Aeronautical Mobile Satellite Services (AMSS) standards. Although the polling protocol shows excellent performances, it still has some shortcomings. In the polling ADS, an ADS report request must be transmitted for every ADS report transmission, and the guard time between successive ADS reports must be larger than the maximum difference of round-trip times between a satellite and an Aircraft Earth Station (AES). These cause some deterioration in transmission efficiency of the channels. This report describes self-synchronized ADS using a satellite. It improves the transmission efficiency over the channels of both ADS report request and ADS report transmissions. Since any modulation and coding schemes can be used with this protocol, it can also be applied to future aeronautical satellite communication systems.
社団法人日本航海学会の論文
2008-03-25