| 一种检验GNSS相位模糊度整周解算有效性的方法 |
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| 引用本文： | 阳仁贵,刘根友,柴艳菊.一种检验GNSS相位模糊度整周解算有效性的方法[J].全球定位系统,2011,36(1):1-6. |
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| 作者姓名： | 阳仁贵 刘根友 柴艳菊 |
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| 作者单位： | 中国科学院测量与地球物理研究所动力大地测量学开放研究实验室,湖北,武汉,430077 |
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| 基金项目： | 广东省中国科学院全面战略合作项目，国家自然科学基金，中科院动力大地测量学开放研究实验室项目 |
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| 摘 要： | 模糊度整周解检验是评价模糊度解算正确性的关键，决定着最终定位结果的可靠性。对原有的假设检验存在的缺陷和不足进行了分析，提出了一种更可靠的比值（Ratio）检验方法。理论分析和数值试验结果都显示改进的检验方法更能正确评价模糊度整数解解算的正确性。该新检验方法，又提出了一种最终模糊度整数解确定的新方法即模糊度候选值再分析法。实验表明：应用该方法能提高模糊度整数解确定的成功率。
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| 关 键 词： | GNSS 相位模糊度 检验 成功率 单历元定位 |
A Verifying Technique to Assure the Resolution of the GNSS Phase Integer Ambiguity |
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| YANG Ren-gui,LIU Gen-you,CHAI Yan-ju.A Verifying Technique to Assure the Resolution of the GNSS Phase Integer Ambiguity[J].Gnss World of China,2011,36(1):1-6. |
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| Authors: | YANG Ren-gui LIU Gen-you CHAI Yan-ju |
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| Institution: | (Institute of Geodesy and Geophysics, Laboratory of Dynamical Geodesy, Chinese Academy of Sciences, Wuhan Hubei 430077, China) |
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| Abstract: | It is very significant to determine whether the integer solution of the phase ambiguity is correct, which assures the reliability of the positioning result. In this paper, a more reliable Ratio test approach is suggested based on the analyzing of the applying hypothesis test. Theory analysis and numerical computation results have showed that the modified test approach is more proper in the reliability verifying of the integer ambiguity than that of applying. For improving the success rate of the resolution of the phase integer ambiguity, a new algorithm is designed called Reanalysis of the Searched Ambiguity Candidates in the paper. Experiments show that this algorithm can select the correct ambiguities from candidates, which can improves the success rate of the resolution of the integer ambiguity obviously. |
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| Keywords: | GNSS |
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