2011 年8 月16 日发射的海洋二号（HY-2）卫星是中国第一颗动力环境卫星，搭载的多普勒雷达和无线电定位组合系统（DORIS）作为HY-2 主要定轨手段之一。本文较为详细介绍了HY-2 多普勒雷达和无线电定位组合系统定轨技术流程和方法，并对其定轨结果进行了初步检验。

The HY-2A satellite, launched on October 16, 2011 is the first dynamic environments satellite in China, carrying the DORIS tracking system which is one of main technology of precise orbit determination .The method and technological process of DORIS solution of HY-2A POD is introduced in detail, then the strategy of POD system is showed, finally the result of the MOE radial accuracy for DORIS solution of HY-2A satellite is given in this paper.

1968年出生，女，黑龙江绥化市人，博士，副研究员，主要研究方向为卫星精密定轨