Acquisition Algorithm for GPS Signal Based on Frequency Shift Method

Jian Liang Zhu; Yu Ming Bo; Jie Zhang

doi:10.4028/www.scientific.net/AMM.182-183.1943

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 182-183Acquisition Algorithm for GPS Signal Based on...

Acquisition Algorithm for GPS Signal Based on Frequency Shift Method

Abstract:

In this paper, we come up with the idea of using frequency shift method to strip carrier when acquiring the GPS signal. The RF uses the quadrature demodulator and dual channel to sample the signal, forming the IF digital signal in I channel and Q channel. The paper derivates the mathematical formula of the frequency shift method, and compares the trigonometric function method with it from the aspect of schematic diagram and calculating. Also, we make simulation of the two schemes using Matlab for both true signal and analog signal. And it comes out that the frequency shift method has got a much greater correlation peak than the trigonometric function method. So we come to the conclusion that it is better using the frequency shift method to acquire signal in low signal intensity.

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Periodical:

Applied Mechanics and Materials (Volumes 182-183)

Pages:

1943-1947

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.182-183.1943

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Online since:

June 2012

Authors:

Jian Liang Zhu, Yu Ming Bo, Jie Zhang

Keywords:

Acquisition, Fast Fourier Transform (FFT), Frequency Shift, GPS Signal

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References

[1] Guohui Gong, Si2kun Li. GPS signal C/A code phase measurement using FFT and circular convolution. Journal on Communications, 2005, 26(7): 76281.

Google Scholar

[2] Ziedan, Nesreen I, GNSS Receivers for Weak Signals. Norwood, MA: Artech House, (2006).

Google Scholar

[3] Rinder P, Bertelsen N, Design of a Single Frequency GPS Software Receiver, Master Thesis, Aalborg University, Denmark, (2004).

Google Scholar

[4] Akopian D. Fast FFT Based GPS Satellite Acquisition Methods, IEE Proceeding on Radar, Sonar & Navigation, Vol. 152, No. 4, August (2005).

DOI: 10.1049/ip-rsn:20045096

Google Scholar

[5] Alaqeeli A, Starzyk J, Van Graas F, Real time acquisition and tracking for GPS receiver, Proceeding of the 2003 International Symposium on Circuits and Systems. Bangkok: IEEE Press, 2003: 5002503.

DOI: 10.1109/iscas.2003.1205933

Google Scholar

[6] Tsuijb Y, Global Positioning System Receiver: A Software Approach. New York: Wiley, (2005).

Google Scholar