船舶用自動追尾アンテナによるBS,CSの受信と航海支援情報の伝送に関する考察

概要

論文の詳細を見る
The Japanese BS and CS are transmitting TV programs to the wide area including Japanese waters. The authors have devised a 2-axis type automatic tracking antenna on board for them and are acquiring the CNR of their reception on a vessel (5856 G/T) steaming about around the Japanese archipelago. The apparatus is composed of inexpensive 2-axis rotator, a 2-axis servo clinometer and a personal computer and directs the antenna to the calculated satellite position. It has been working almost perfectly for three years. The measured values show that the nominal radiation patterns of BS-3a, JCSAT-2 and Superbird-B are almost consistent. The Teletext that is carried by the video synchronous signal might be effective to transfer the sea safety information to ships steaming on Japanese waters, as the numbers of the ships that install the reception apparatus on the market are increasing rapidly recently.
社団法人日本航海学会の論文
1994-03-25