Research on fractal features of multipath effect for pseudolite and its elimination strategy

doi:10.13474/j.cnki.11-2246.2020.0319

Abstract

Abstract: The multipath effect is of major concern in pseudolite precise applications. This paper first validate the multipath has the features of fractal and then study the difference on the modulus maximum between fractal and Gauss noise by wavelet transform. A new method is proposed to separate multipath and noise base on fractal theory and wavelet transform for stationary applications. The filed tests show this method can effectively reduce the multipath effect of pseudolite and improve the accuracy and reliability of pseudolite augmented GPS positioning system. This method is just based on the fractal of the signal without introducing extra priori information and more suitable for some harsh observation conditions, especially for deformation monitoring applications.

Key words: pseudolite, deformation monitoring, multipath, fractal, wavelet transform

CLC Number:

P228.4

SANG Wengang, HUANG Liming, ZHAO Peihua, LIU Yingchun, LU Kai. Research on fractal features of multipath effect for pseudolite and its elimination strategy[J]. Bulletin of Surveying and Mapping, 2020, 0(10): 58-62.

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