ADS太平洋国際共同実験-II

概要

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Automatic Dependent Surveillance (ADS) is a system whereby aircraft automatically transmits, via data link, data derived from onboard navigation system such as IRS. It is expected to improve the ATC surveillance capability in oceanic aerospace. The ADS Pacific Engineering Trials are being conducted to collect basic data for ADS. The trials were conducted using INMARSAT satellites and Japan Airlines' B747-400 aircraft with a low rate satellite data communication system on overseas flights from U.S.A. to Japan, from Japan to Singapore and from London to Japan. The results of the trials are shown as follows ; 1) The aircraft movement in the oceanic space can be monitored accurately at a satellite elevation angle of 3.1 degrees. 2) The ratio between ADS request transmissions and ADS data receipt was 83%. 3) The transmission delay of most ADS data is about 80 seconds. 4) The distance between ADS-derived position and predicted position can be reduced using the value of a ground track angle and a ground speed.
社団法人日本航海学会の論文
1994-09-25