DGPSの補正データ伝送遅延における測位精度の劣化 The Deterioration of Position Accuracy due to Transmission Delay of DGPS Correction Data

Access this Article

Search this Article

Author(s)

Abstract

DGPSは補正データを伝送することによって利用者側の測位精度を向上させることができる。この補正データの伝送に遅延が生じれば,利用者側のDGPSによる測位精度は劣化する。そこで,利用者側の受信機を補正データを送信する側のすぐ近くに置いた場合と,約210km離れたところに置いた場合において,補正データの伝送遅延時間が及ぼす測位精度の劣化程度がどのようになるかを解析した。その結果,送信側から210kmのエリア内の測位誤差は,補正データの伝送遅延時間と利用者側のDGPSの測位誤差にのみ影響を受け,送信側から利用者までの距離の影響は受けないことが分かった。このことにより,補正デ=タ伝送遅延時間による測位誤差を簡単に求めることが出来る近似式を導き出した。

The DGPS is possible to improve the position accuracy of the users by way of the correction data transmission. When there is transimission delay of correction data, the position accuracy of the user by DGPS deteriorates,For this reason, an analysis for the deterioration of position accuracy due to the correction data transmissiondelay time was made this time, by putting the receiver at the user who was located near the transmitting side ofthe correction data and user who was located 210 km apart from one.As a result, within the area of less than 210 km from the transmitting side of the correction data, the positioningaccuracy of the user was shown with two factors, the transmission delay time and the positioning accuracyof the user side by DGPS, and had no influence of the distance between the transmitting side and the user side.Authors reached the approximated equation that the position error due to the correction data delay time couldbe calculated easily by this analysis.

Journal

  • Journal of Fisheries Engineering

    Journal of Fisheries Engineering 36(1), 49-55, 1999-07-15

    The Japanese Society of Fisheries Engineering

References:  7

Cited by:  1

Codes

  • NII Article ID (NAID)
    10008275202
  • NII NACSIS-CAT ID (NCID)
    AN10278554
  • Text Lang
    ENG
  • Article Type
    Journal Article
  • ISSN
    09167617
  • NDL Article ID
    4818695
  • NDL Source Classification
    ZR26(科学技術--農林水産--水産)
  • NDL Call No.
    Z18-1327
  • Data Source
    CJP  CJPref  NDL  J-STAGE  JASI 
Page Top