测绘通报 ›› 2025, Vol. 0 ›› Issue (10): 175-179.doi: 10.13474/j.cnki.11-2246.2025.1029

• 测绘地理信息技术应用案例 • 上一篇    

HJ-2F卫星星载GPS数据质量分析与定轨评估

孙玉强1, 彭磊2, 袁兴明3, 彭正斌3, 宋传峰4   

  1. 1. 中交公路规划设计院有限公司, 北京 100010;
    2. 广州南方测绘科技股份有限公司济南 分公司, 山东 济南 250000;
    3. 山东工业职业学院建筑与信息工程学院, 山东 淄博 256414;
    4. 辽宁工程技术大学测绘与地理科学学院, 辽宁 阜新 123000
  • 收稿日期:2025-05-29 发布日期:2025-10-31
  • 通讯作者: 彭磊。E-mail:zyyxm2625@126.com
  • 作者简介:孙玉强(1986-),男,硕士,高级工程师,研究方向为GNSS/低轨卫星导航定位高精度数据处理。E-mail:2868407754@qq.com

Quality analysis and precise orbit determination evaluation based on onboard GPS data

SUN Yuqiang1, PENG Lei2, YUAN Xingming3, PENG Zhengbin3, SONG Chuanfeng4   

  1. 1. China Communications Highway Planning and Design Institute Co., Ltd., Beijing 100010, China;
    2. Guangzhou South Surveying and Mapping Technology Co., Ltd., Jinan Branch, Jinan 250000, China;
    3. Architecture and Information Engineering, Shandong Vocational College of Industry, Zibo 256414, China;
    4. School of Geomatics, Liaoning Technical University, Fuxin 123000, China
  • Received:2025-05-29 Published:2025-10-31

摘要: 环境减灾二号06星(HJ-2F)是我国新一代小型低轨合成孔径雷达(SAR)遥感卫星,主要用于实现全天候、全天时的生态环境监测业务。高精度轨道确定是其高质量遥感观测任务的关键保障。本文基于HJ-2F卫星2025年1月的星载双频GPS观测数据,从可见性、周跳比及测量噪声等方面对观测质量进行了系统分析,并采用简化动力学模型开展精密定轨研究。利用国产星载双频GPS接收机可实现优于1cm的径向定位精度和优于3cm的三维轨道精度。HJ-2F作为新一代环境监测卫星,能够满足高精度遥感业务应用需求。

关键词: HJ-2F, GPS, 低轨卫星, 数据质量, 精密定轨

Abstract: HJ-2F is a new-generation small low earth orbit (LEO)synthetic aperture radar (SAR)remote sensing satellite developed by China, primarily designed for all-weather, all-day operational monitoring of ecological and environmental conditions.High-precision orbit determination is essential to ensure the quality and reliability of its remote sensing observations.This study analyzes onboard dual-frequency GPS observation data from HJ-2F acquired in January 2025.The observation quality is systematically evaluated in terms of satellite visibility, cycle slip rate, and measurement noise.A simplified dynamic model is then employed to conduct precise orbit determination (POD).The results demonstrate that the domestically developed onboard dual-frequency GPS receiver enables a radial orbit accuracy better than 1cm and a 3D orbit accuracy better than 3cm, meeting the requirements of high-precision remote sensing applications.

Key words: HJ-2F, GPS, low-orbit satellite, data quality analysis, precise orbit determination

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