滁州学院学报
滁州學院學報
저주학원학보
Journal of Chuzhou University
2012年
5期
47~50
,共null页
GPS 误差 来源 大小 方法
GPS 誤差 來源 大小 方法
GPS 오차 래원 대소 방법
GPS; error; sources; degree; measures
文章系统地介绍了GPS导航仪的工作原理和误差，着重从理论上分析了GPS导航仪与卫星信号传播有关的测伪距误差、卫星和船舶相对位置夹角有关的几何误差、海图坐标系和海图所引起误差的来源和大小。根据这些误差的特点，提出一些减小误差提高定位精度的方法以及利用本船的GPS卫星导航仪进行数据实测，验证实测结果是否在理论误差范围内。
文章繫統地介紹瞭GPS導航儀的工作原理和誤差，著重從理論上分析瞭GPS導航儀與衛星信號傳播有關的測偽距誤差、衛星和船舶相對位置夾角有關的幾何誤差、海圖坐標繫和海圖所引起誤差的來源和大小。根據這些誤差的特點，提齣一些減小誤差提高定位精度的方法以及利用本船的GPS衛星導航儀進行數據實測，驗證實測結果是否在理論誤差範圍內。
문장계통지개소료GPS도항의적공작원리화오차，착중종이론상분석료GPS도항의여위성신호전파유관적측위거오차、위성화선박상대위치협각유관적궤하오차、해도좌표계화해도소인기오차적래원화대소。근거저사오차적특점，제출일사감소오차제고정위정도적방법이급이용본선적GPS위성도항의진행수거실측，험증실측결과시부재이론오차범위내。
The article systematically introduces the working principle of the GPS navigator and its error, and mainly analyzes the pseudo--range error related to GPS navigators and satellite signal propagation, the geometric error caused by the angle between satellite and ship＇s position, and the error caused by charts and their geodetic coordinate systems theoretically. The sources and degrees of these errors are discussed in the paper. According to the features of these errors, some measures to reduce the error and improve positioning accuracy are proposed. By using a ship＇s GPS navigator, an experiment is carried out to collect data to verify whether the measured results are in the range of theoretical error.
