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A Simple and Economic Algorithm For Ambiguity Resolution OTF Using a Whitening Filter

机译:一种使用白化滤波器的歧义度OTF的简单经济算法

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摘要

In this paper, a whitening filter technique using ldl (Lower Diagonal Lower) and udu (Upper Diagonal Upper) factorizations is used to provide a simple carrier phase ambiguity resolution OTF technique. The technique proved to be very efficient for short baselines over short observation periods. It also performed well in instantaneously recovering ambiguities after loss of lock. The ability to function without a search algorithm combined with the simplicity of its implementation make the whitening filter a powerful tool to resolve GPS carrier phase ambiguity on the fly. The whitening filter can also be used with algorithms that use a search technique by applying the whitening filter technique right before the search to make the search more efficient. A MATLAB~® implementation of the algorithm is given in the appendix.
机译:在本文中,使用ldl(下对角线下)和udu(对角线上)分解的白化滤波器技术可提供一种简单的载波相位模糊度OTF技术。事实证明,该技术对于在较短观察期内的短基线非常有效。在丢失锁定后立即恢复歧义性方面也表现出色。无需搜索算法即可运行的功能以及其实现的简便性,使白化滤波器成为解决GPS载波相位模糊性的强大工具。通过在搜索之前立即应用白化滤波器技术,可以使白化滤波器与使用搜索技术的算法一起使用,以使搜索更加有效。附录中给出了该算法的MATLAB〜实现。

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