RTK-GPS Positioning by TV Wave of Audio-MPX-Data-Broadcast

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  • RTK-GPSのテレビ音声多重放送をデータ伝送に利用した測位
  • RTK-GPS ノ テレビ オンセイ タジュウ ホウソウ オ データ デンソウ

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Description

A highly accurate positioning is possible with a cm order by RTK-GPS (Real-Time Kinematic GPS) which measures the range from satellites with the accuracy of mm order by a carrier phase detection. It is indispensable, however, to keep a high speed data communication link for RTK-GPS positioning. The authors tried to establish a data dissemination system by audio-mpx-data-broadcasting of TV wave. The data transmission time is random and placed between 0.743 and 1.317 s of which difference is corresponding to the transmission time of one packet of the multiplexed data. The 2drms and the vertical 2σ of the positions thus fixed are 2.5 cm or less.

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