高精度水下基准位置测量及误差分析

水下基准位置的精确测量是水声高精度定位标定系统的关键技术，它的方位精度直接影响到水声定位系统定位误差的计量。文章详细分析了水下基准安装柱扰曲形变、GPS定位误差、罗经测向误差、纵倾横摇角测量误差对高精度定位标定系统水下基准位置的影响，为工程应用上的误差控制提供了一定的理论支持。

Position Measurement and Error Analysis of Hight Accurate Underwater Datum Mark

The accurate position measurement of underwater datum mark is the key technology of the high accurate acoustic orientation and demarcation system,who＇s orientation precesion directly effeeted the error measurement of the acoustic orientation system. This paper detailedly analysised the effects of underwater datum mark hydrokinetics, GPS orientation error, compass measurement error, pitch and roll measurement error. The results can provide a reference for error control in engineering application.