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2015 | OriginalPaper | Buchkapitel

16. Analysis and Comparison of Non-coherent and Differential Acquisition Integration Strategies

verfasst von : Dandan Zeng, Songlin Ou, Jinhai Li, Jinhai Sun, Yuepeng Yan, Haofeng Li

Erschienen in: China Satellite Navigation Conference (CSNC) 2015 Proceedings: Volume I

Verlag: Springer Berlin Heidelberg

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Abstract

In the application of global satellite position system, signal adaptive acquisition strategies are required for various environment applications, such as weak signal, emergency moment, so fast and high sensitivity acquisition algorithms are important for the receiver process. This paper presents acquisition algorithms: coherent integration, non-coherent integration, differential coherent and differential non-coherent integration, and the differential integration are analyzed in both standard and pair-wise form, all of which are theoretically compared in their probability distribution with detailed analysis. And testing statics using Monte-Carlo with collected realistic various signal, considering the existence of carrier Doppler frequency and code phase shift in the objectives, give out that in certain probability of detection, differential standard coherent integration is the best detector, non-coherent integration is the second best; and differential pair-wise coherent, differential standard and pair-wise non-coherent integration give out almost the same performance; and the standard algorithm is more tolerable in residual Doppler environment than the pair-wise algorithm; the code phase shift will affect much more in the lower probability of detection; finally, in the theory analysis, the hypothesis of approximated gauss distribution and the IQ data completely independence with each other need to be revised in more accurate model to fit the actual data.

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Literatur
1.
Zurück zum Zitat Dong X, Tang B (2008) Principle and design of satellite navigation software receiver. National Defence Industry Press, Beijing, pp 139–144 Dong X, Tang B (2008) Principle and design of satellite navigation software receiver. National Defence Industry Press, Beijing, pp 139–144
2.
Zurück zum Zitat W Yu (2007) Selected GPS receiver enhancements for weak signal. Master thesis, University of Calgary, Canada W Yu (2007) Selected GPS receiver enhancements for weak signal. Master thesis, University of Calgary, Canada
3.
Zurück zum Zitat O’Driscoll C (2007) Performance analysis of the parallel acquisition of weak GPS signals. Ph.D. thesis, National University of Ireland, Ireland O’Driscoll C (2007) Performance analysis of the parallel acquisition of weak GPS signals. Ph.D. thesis, National University of Ireland, Ireland
Metadaten
Titel
Analysis and Comparison of Non-coherent and Differential Acquisition Integration Strategies
verfasst von
Dandan Zeng
Songlin Ou
Jinhai Li
Jinhai Sun
Yuepeng Yan
Haofeng Li
Copyright-Jahr
2015
Verlag
Springer Berlin Heidelberg
DOI
https://doi.org/10.1007/978-3-662-46638-4_16

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