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首页> 外文会议>Proceedings of the 22nd international technical meeting of the Satellite Division of the Institute of Navigation (ION GNSS 2009) >Ambiguity Validation with Combined Ratio Test and EIA
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Ambiguity Validation with Combined Ratio Test and EIA

机译：结合比率测试和EIA的歧义验证

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摘要

To ensure reliable ambiguity resolution, ambiguity validation is an indispensable step.It has been a challenge for many years and is far from being resolved. rnOver the past years,various ambiguity validation methods have been proposed,such as F-ratio test, R-ratio test,difference test,projector test, Ellipsoidal Integer Aperture(EIA)estimator and Penalized Integer Aperture(PIA)estimator. rnIn this paper,through analysis and test,we find that,when the aperture region of EIA is not allowed to be overlapped,the efficiency of ambiguity resolution with EIA is low and it is not applicable to fast static positioning or real- time kinematic(RTK)applications.Then EIA with overlapped aperture regions is recommended and the resulted fail-rate becomes upper bound of the actual one.After that,it is suggested that combined use of overlapped EIA and R-ratio test can increase the reliability of ambiguity resolution.Finally,numerical tests are carried out based on practical buoy data and simulated Galileo data.
机译：为了确保可靠的歧义解决，歧义验证是必不可少的步骤，多年来一直是一个挑战，距离解决尚远。在过去的几年中，已经提出了多种模糊度验证方法，例如F比测试，R比测试，差值测试，投影仪测试，椭球整数孔径（EIA）估计器和罚整数孔径（PIA）估计器。在本文中，通过分析和测试，我们发现，当不允许EIA的孔径区域重叠时，EIA的模糊度解析效率较低，不适用于快速静态定位或实时运动学（建议先使用孔径区域重叠的EIA，然后将失败率变为实际值的上限。然后，建议将重叠EIA和R比率测试结合使用可以提高模糊度分辨率的可靠性最后，根据实际的浮标数据和模拟的伽利略数据进行了数值测试。

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