A new multi-C/A code acquisition method for GPS

Shau Shiun Jan; Yao Cheng Lin

doi:10.1007/s10291-009-0122-7

A new multi-C/A code acquisition method for GPS

Shau Shiun Jan, Yao Cheng Lin

Institute of Civil Aviation

Research output: Contribution to journal › Article › peer-review

13 Citations (Scopus)

Abstract

An acquisition method is proposed which saves processing time and rapidly finds the Global Positioning System (GPS) satellite with high receiving power. The idea is to combine two or more Coarse/Acquisition (C/A) codes to process acquisition, thus called "multi-C/A code acquisition method." The proposed method will change the procedure of conventional Fast Fourier Transform acquisition slightly, and it has the capabilities to combine with other acquisition methods to perform signal acquisition simultaneously. In order to show how this multi-C/A code acquisition method may improve the Time To First Fix at the cold start, the real raw Intermediate Frequency data from a GPS software receiver are used to validate this multi-C/A code acquisition method. The results show that this method can save at least 23% processing time and it is able to detect the satellite more rapidly.

Original language	English
Pages (from-to)	293-303
Number of pages	11
Journal	GPS Solutions
Volume	13
Issue number	4
DOIs	https://doi.org/10.1007/s10291-009-0122-7
Publication status	Published - 2009 Sept

All Science Journal Classification (ASJC) codes

General Earth and Planetary Sciences

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10.1007/s10291-009-0122-7

Cite this

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title = "A new multi-C/A code acquisition method for GPS",

abstract = "An acquisition method is proposed which saves processing time and rapidly finds the Global Positioning System (GPS) satellite with high receiving power. The idea is to combine two or more Coarse/Acquisition (C/A) codes to process acquisition, thus called {"}multi-C/A code acquisition method.{"} The proposed method will change the procedure of conventional Fast Fourier Transform acquisition slightly, and it has the capabilities to combine with other acquisition methods to perform signal acquisition simultaneously. In order to show how this multi-C/A code acquisition method may improve the Time To First Fix at the cold start, the real raw Intermediate Frequency data from a GPS software receiver are used to validate this multi-C/A code acquisition method. The results show that this method can save at least 23% processing time and it is able to detect the satellite more rapidly.",

author = "Jan, {Shau Shiun} and Lin, {Yao Cheng}",

note = "Funding Information: Acknowledgments The authors would like to thank the Taiwan National Science Council for supporting the work reported in this paper under research grant NSC 97-2221-E-006-061.",

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T1 - A new multi-C/A code acquisition method for GPS

AU - Jan, Shau Shiun

AU - Lin, Yao Cheng

N1 - Funding Information: Acknowledgments The authors would like to thank the Taiwan National Science Council for supporting the work reported in this paper under research grant NSC 97-2221-E-006-061.

PY - 2009/9

Y1 - 2009/9

N2 - An acquisition method is proposed which saves processing time and rapidly finds the Global Positioning System (GPS) satellite with high receiving power. The idea is to combine two or more Coarse/Acquisition (C/A) codes to process acquisition, thus called "multi-C/A code acquisition method." The proposed method will change the procedure of conventional Fast Fourier Transform acquisition slightly, and it has the capabilities to combine with other acquisition methods to perform signal acquisition simultaneously. In order to show how this multi-C/A code acquisition method may improve the Time To First Fix at the cold start, the real raw Intermediate Frequency data from a GPS software receiver are used to validate this multi-C/A code acquisition method. The results show that this method can save at least 23% processing time and it is able to detect the satellite more rapidly.

AB - An acquisition method is proposed which saves processing time and rapidly finds the Global Positioning System (GPS) satellite with high receiving power. The idea is to combine two or more Coarse/Acquisition (C/A) codes to process acquisition, thus called "multi-C/A code acquisition method." The proposed method will change the procedure of conventional Fast Fourier Transform acquisition slightly, and it has the capabilities to combine with other acquisition methods to perform signal acquisition simultaneously. In order to show how this multi-C/A code acquisition method may improve the Time To First Fix at the cold start, the real raw Intermediate Frequency data from a GPS software receiver are used to validate this multi-C/A code acquisition method. The results show that this method can save at least 23% processing time and it is able to detect the satellite more rapidly.

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A new multi-C/A code acquisition method for GPS

Abstract

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