New Threshold Setting Method of GNSS Signal Acquisition under Near-Far Situation

Y. Liu, T. Jin, H. Qin

Abstract:	This paper firstly analysis traditional threshold setting method based on the coherent correlation and non-coherent accumulation detector used in weak satellite signal detection mathematically and statistically, and then two novel threshold setting criteria are introduced. The first method is theoretical criterion with near-far consideration and centered false alarm ratio. The second method takes advantage of real data information to determine the noise level and threshold. Furthermore, an adaptive threshold setting method is discussed to reduce calculation time. Finally, experiments are carried on using real data to evaluate the methods above.
Published in:	Proceedings of the 23rd International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GNSS 2010) September 21 - 24, 2010 Oregon Convention Center, Portland, Oregon Portland, OR
Pages:	3298 - 3308
Cite this article:	Liu, Y., Jin, T., Qin, H., "New Threshold Setting Method of GNSS Signal Acquisition under Near-Far Situation," Proceedings of the 23rd International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GNSS 2010), Portland, OR, September 2010, pp. 3298-3308.
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